Trojan.Encoder.32987

Technical Information

To ensure autorun and distribution

Modifies the following registry keys

[<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'svchos' = '<SYSTEM32>\Dwm.exe'
[<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'svchos' = '<Full path to file>'
[<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'svchos' = '<Current directory>\qvIkttC.exe'

Changes the following executable system files

<SYSTEM32>\dwm.exe

Malicious functions

Executes the following

'<SYSTEM32>\net.exe' stop "audioendpointbuilder" /y
'<SYSTEM32>\net.exe' stop "samss" /y

Injects code into

the following system processes:

<SYSTEM32>\taskhost.exe

Modifies file system

Creates the following files

<Current directory>\qvikttc.exe
C:\documents and settings\default\documents\my videos\ryukreadme.html
C:\documents and settings\default\downloads\ryukreadme.html
C:\documents and settings\default\favorites\ryukreadme.html
C:\documents and settings\default\links\ryukreadme.html
C:\documents and settings\default\saved games\ryukreadme.html
C:\documents and settings\public\ryukreadme.html
C:\documents and settings\public\downloads\ryukreadme.html
C:\documents and settings\user\appdata\local\adobe\ryukreadme.html
C:\documents and settings\public\libraries\ryukreadme.html
C:\documents and settings\public\recorded tv\ryukreadme.html
C:\documents and settings\public\recorded tv\sample media\ryukreadme.html
C:\documents and settings\user\ryukreadme.html
C:\documents and settings\user\appdata\ryukreadme.html
C:\documents and settings\user\appdata\local\ryukreadme.html
C:\documents and settings\default\documents\my pictures\ryukreadme.html
C:\documents and settings\default\ntuser.dat
C:\documents and settings\default\documents\my music\ryukreadme.html
C:\documents and settings\default\appdata\roaming\microsoft\windows\sendto\ryukreadme.html
C:\documents and settings\default\appdata\roaming\microsoft\internet explorer\quick launch\ryukreadme.html
C:\documents and settings\default\appdata\roaming\microsoft\windows\ryukreadme.html
C:\documents and settings\default\appdata\roaming\microsoft\windows\cookies\ryukreadme.html
C:\documents and settings\default\appdata\roaming\microsoft\windows\network shortcuts\ryukreadme.html
C:\documents and settings\default\appdata\roaming\microsoft\windows\printer shortcuts\ryukreadme.html
C:\documents and settings\default\appdata\roaming\microsoft\windows\recent\ryukreadme.html
C:\documents and settings\default\appdata\roaming\microsoft\windows\start menu\ryukreadme.html
C:\documents and settings\default\desktop\ryukreadme.html
C:\documents and settings\default\appdata\roaming\microsoft\windows\start menu\programs\ryukreadme.html
C:\documents and settings\default\appdata\roaming\microsoft\windows\start menu\programs\accessories\ryukreadme.html
C:\documents and settings\default\appdata\roaming\microsoft\windows\start menu\programs\accessories\accessibility\ryukreadme.html
C:\documents and settings\default\appdata\roaming\microsoft\windows\start menu\programs\accessories\system tools\ryukreadme.html
C:\documents and settings\default\appdata\roaming\microsoft\windows\start menu\programs\maintenance\ryukreadme.html
C:\documents and settings\default\appdata\roaming\microsoft\windows\templates\ryukreadme.html
C:\documents and settings\default\documents\ryukreadme.html
C:\documents and settings\user\appdata\local\adobe\color\profiles\ryukreadme.html
C:\documents and settings\user\appdata\local\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\wi...
C:\documents and settings\user\appdata\local\adobe\acrobat\dc\cache\ryukreadme.html
C:\documents and settings\user\appdata\local\application data\application data\adobe\acrobat\dc\adobesysfnt15.lst
C:\documents and settings\user\appdata\local\application data\application data\adobe\acrobat\dc\adobecmapfnt15.lst
C:\documents and settings\user\appdata\local\adobe\acrobat\dc\shareddataevents
C:\documents and settings\user\appdata\local\application data\adobe\color\profiles\wsrgb.icc
C:\documents and settings\user\appdata\local\application data\application data\adobe\acrobat\dc\iconcacherdr.dat
C:\documents and settings\user\appdata\local\application data\application data\adobe\acrobat\dc\usercache.bin
C:\documents and settings\user\appdata\local\application data\adobe\acrocef\dc\acrobat\cache\data_3
C:\documents and settings\user\appdata\local\adobe\acrobat\dc\ryukreadme.html
C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\cache\data_1
C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\cache\data_2
C:\documents and settings\user\appdata\local\application data\application data\application data\application data\application data\application data\application data\application data\application ...
C:\documents and settings\user\appdata\local\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\fe...
C:\documents and settings\user\appdata\local\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\in...
C:\documents and settings\user\appdata\local\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\me...
C:\documents and settings\user\appdata\local\application data\adobe\color\acecache11.lst
C:\documents and settings\default\appdata\roaming\microsoft\internet explorer\ryukreadme.html
C:\documents and settings\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tmcontainer00000000000000000002.regtrans-ms
C:\documents and settings\user\appdata\local\adobe\color\ryukreadme.html
C:\documents and settings\user\appdata\local\adobe\acrobat\dc\toolssearchcacherdr\ryukreadme.html
C:\documents and settings\user\appdata\local\adobe\acrocef\ryukreadme.html
C:\documents and settings\user\appdata\local\adobe\acrocef\dc\ryukreadme.html
C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\ryukreadme.html
C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\cache\ryukreadme.html
C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\cookie\ryukreadme.html
C:\documents and settings\user\appdata\local\adobe\acrobat\ryukreadme.html
C:\documents and settings\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tm.blf
C:\documents and settings\public\libraries\recordedtv.library-ms
C:\documents and settings\user\appdata\local\adobe\acrobat\dc\cache\acrofnt15.lst
C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\cache\data_0
C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\cookie\cookies
C:\documents and settings\user\appdata\local\adobe\color\profiles\wscrgb.icc
C:\documents and settings\public\recorded tv\sample media\win7_scenic-demoshort_raw.wtv
C:\documents and settings\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tmcontainer00000000000000000001.regtrans-ms
C:\documents and settings\user\appdata\local\application data\adobe\acrocef\dc\acrobat\cache\index
C:\documents and settings\default\appdata\roaming\microsoft\ryukreadme.html
C:\documents and settings\all users\application data\application data\application data\application data\application data\microsoft\windows\wer\reportqueue\appcrash_autokms.exe_efd62e343880604c4...
C:\documents and settings\all users\adobe\arm\s\armmanifest.msi
C:\documents and settings\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\ryukreadme.html
C:\documents and settings\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\data1.cab
C:\documents and settings\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acrordrdcupd1500820082.msp
C:\documents and settings\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acroread.msi
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\application data\appl...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\application data\docu...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\package cache\{0d3e9e...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\application data\pack...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\application data\star...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\device stag...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\assistance\...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\microsoft\search\data...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\package cache\42d5bec...
C:\documents and settings\all users\adobe\setup\ryukreadme.html
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\application data\micr...
C:\documents and settings\all users\adobe\arm\{291aa914-a987-4ce9-bd63-ac0a92d435e5}\ryukreadme.html
C:\documents and settings\ryukreadme.html
%ALLUSERSPROFILE%\microsoft\crypto\rsa\machinekeys\08e575673cce10c72090304839888e02_36d1130a-ac2e-44f7-9dc1-e424fbcbe0ee
%TEMP%\ryukreadme.html
D:\ryukreadme.html
D:\$recycle.bin\ryukreadme.html
D:\$recycle.bin\s-1-5-21-1960123792-2022915161-3775307078-1001\ryukreadme.html
C:\ryukreadme.html
C:\documents and settings\all users\ryukreadme.html
C:\documents and settings\all users\adobe\arm\reader_15.007.20033\acrordrdcupd1500920077.msp
C:\documents and settings\all users\adobe\ryukreadme.html
C:\documents and settings\all users\adobe\arm\ryukreadme.html
C:\documents and settings\all users\adobe\arm\reader_15.007.20033\ryukreadme.html
C:\documents and settings\all users\adobe\arm\reader_15.008.20082\ryukreadme.html
C:\documents and settings\all users\adobe\arm\s\ryukreadme.html
C:\documents and settings\all users\adobe\arm\reader_15.007.20033\readerdcmanifest.msi
C:\documents and settings\all users\adobe\arm\s\10428\ryukreadme.html
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\device stage\task\{e35be42d-...
C:\documents and settings\default\appdata\roaming\ryukreadme.html
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\package cache\{be960c...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\microsoft\windows\wer\reportqueue\noncritical_x64_5d5d8...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\microsoft\windows\wer\reportqueue\noncritical_x64_d473a...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\package cache\{0d3e9e15-de7a-300b-96f1-b4af12b96488}v14...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\package cache\{a2563e55-3bec-3828-8d67-e5e8b9e8b675}v14...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\package cache\{bc958bd2-5dac-3862-bb1a-c1be0790438d}v14...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\package cache\{be960c1c-7bad-3de6-8b1a-2616fe532845}v14...
C:\documents and settings\all users\application data\application data\application data\application data\application data\package cache\{bc958bd2-5dac-3862-bb1a-c1be0790438d}v14.0.23026\packages...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\package cache\{bc958b...
C:\documents and settings\all users\application data\application data\application data\application data\application data\package cache\{be960c1c-7bad-3de6-8b1a-2616fe532845}v14.0.23026\packages...
volume{600ba660-c712-11e6-a54f-080027cffa47}\system volume information\tracking.log.tmp
C:\documents and settings\default\ryukreadme.html
C:\documents and settings\default\appdata\ryukreadme.html
C:\documents and settings\default\appdata\local\ryukreadme.html
C:\documents and settings\default\appdata\local\application data\application data\application data\application data\application data\application data\application data\application data\applicati...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\microsoft\windows\wer\reportqueue\noncritical_x64_4a8ed...
C:\documents and settings\default\appdata\roaming\media center programs\ryukreadme.html
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\microsoft\windows\wer\reportqueue\appcrash_autokms.exe_...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\device stage\task\{07deb856-...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\start menu\programs\m...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\crypto\rsa\s-1-5-18\d42cc0c3...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\crypto\rsa\machinekeys\08e57...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\crypto\keys\68383f0e45dd9b02...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\crypto\rsa\s-1-5-18\5d91c0b7...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\crypto\rsa\s-1-5-18\6d14e4b1...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\package cache\{a2563e...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\package cache\{bc958bd2-5dac-3862-bb1a...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\documents\my music\sample music\albuma...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\search\data\applications\win...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\windows defender\definition ...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\package cache\42d5bec7ddfbd49e76467529...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\package cache\{0d3e9e15-de7a-300b-96f1...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\package cache\{a2563e55-3bec-3828-8d67...
C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\package cache\{be960c1c-7bad-3de6-8b1a...
C:\documents and settings\user\appdata\local\application data\application data\application data\application data\application data\application data\application data\application data\temp\acrord3...

Moves the following files

from C:\documents and settings\all users\adobe\arm\reader_15.007.20033\readerdcmanifest.msi to C:\documents and settings\all users\adobe\arm\reader_15.007.20033\readerdcmanifest.msi.ryk
from C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\cookie\cookies to C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\cookie\cookies.ryk
from C:\documents and settings\public\recorded tv\sample media\win7_scenic-demoshort_raw.wtv to C:\documents and settings\public\recorded tv\sample media\win7_scenic-demoshort_raw.wtv.ryk
from C:\documents and settings\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tm.blf to C:\documents and settings\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tm.blf.ryk
from C:\documents and settings\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tmcontainer00000000000000000001.regtrans-ms to C:\documents and settings\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tmcontainer00000000000000000001.regtrans-ms.ryk
from C:\documents and settings\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tmcontainer00000000000000000002.regtrans-ms to C:\documents and settings\default\ntuser.dat{016888bd-6c6f-11de-8d1d-001e0bcde3ec}.tmcontainer00000000000000000002.regtrans-ms.ryk
from C:\documents and settings\user\appdata\local\application data\adobe\color\acecache11.lst to C:\documents and settings\user\appdata\local\application data\adobe\color\acecache11.lst.ryk
from C:\documents and settings\user\appdata\local\application data\application data\adobe\acrobat\dc\adobesysfnt15.lst to C:\documents and settings\user\appdata\local\application data\application data\adobe\acrobat\dc\adobesysfnt15.lst.ryk
from C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\crypto\rsa\s-1-5-18\d42cc0c3... to C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\crypto\rsa\s-1-5-18\d42cc0c3...
from C:\documents and settings\user\appdata\local\application data\application data\adobe\acrobat\dc\adobecmapfnt15.lst to C:\documents and settings\user\appdata\local\application data\application data\adobe\acrobat\dc\adobecmapfnt15.lst.ryk
from C:\documents and settings\user\appdata\local\adobe\color\profiles\wscrgb.icc to C:\documents and settings\user\appdata\local\adobe\color\profiles\wscrgb.icc.ryk
from C:\documents and settings\user\appdata\local\application data\adobe\color\profiles\wsrgb.icc to C:\documents and settings\user\appdata\local\application data\adobe\color\profiles\wsrgb.icc.ryk
from C:\documents and settings\user\appdata\local\application data\application data\adobe\acrobat\dc\usercache.bin to C:\documents and settings\user\appdata\local\application data\application data\adobe\acrobat\dc\usercache.bin.ryk
from C:\documents and settings\user\appdata\local\application data\adobe\acrocef\dc\acrobat\cache\index to C:\documents and settings\user\appdata\local\application data\adobe\acrocef\dc\acrobat\cache\index.ryk
from C:\documents and settings\default\ntuser.dat.log1 to C:\documents and settings\default\ntuser.dat.log1.ryk
from C:\documents and settings\user\appdata\local\application data\adobe\acrocef\dc\acrobat\cache\data_3 to C:\documents and settings\user\appdata\local\application data\adobe\acrocef\dc\acrobat\cache\data_3.ryk
from C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\cache\data_1 to C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\cache\data_1.ryk
from C:\documents and settings\user\appdata\local\adobe\acrobat\dc\cache\acrofnt15.lst to C:\documents and settings\user\appdata\local\adobe\acrobat\dc\cache\acrofnt15.lst.ryk
from C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\cache\data_0 to C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\cache\data_0.ryk
from C:\documents and settings\public\libraries\recordedtv.library-ms to C:\documents and settings\public\libraries\recordedtv.library-ms.ryk
from C:\documents and settings\default\ntuser.dat.log to C:\documents and settings\default\ntuser.dat.log.ryk
from volume{600ba660-c712-11e6-a54f-080027cffa47}\system volume information\tracking.log.tmp to volume{600ba660-c712-11e6-a54f-080027cffa47}\system volume information\tracking.log
from C:\documents and settings\all users\adobe\arm\s\armmanifest.msi to C:\documents and settings\all users\adobe\arm\s\armmanifest.msi.ryk
from C:\documents and settings\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\data1.cab to C:\documents and settings\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\data1.cab.ryk
from C:\documents and settings\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acrordrdcupd1500820082.msp to C:\documents and settings\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acrordrdcupd1500820082.msp.ryk
from C:\documents and settings\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acroread.msi to C:\documents and settings\all users\adobe\setup\{ac76ba86-7ad7-1033-7b44-ac0f074e4100}\acroread.msi.ryk
from C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\application data\appl... to C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\application data\appl...
from C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\application data\micr... to C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\application data\micr...
from C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\application data\docu... to C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\application data\docu...
from C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\cache\data_2 to C:\documents and settings\user\appdata\local\adobe\acrocef\dc\acrobat\cache\data_2.ryk
from C:\documents and settings\user\appdata\local\adobe\acrobat\dc\shareddataevents to C:\documents and settings\user\appdata\local\adobe\acrobat\dc\shareddataevents.ryk
from C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\application data\pack... to C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\application data\application data\pack...
from C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\crypto\rsa\s-1-5-18\5d91c0b7... to C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\crypto\rsa\s-1-5-18\5d91c0b7...
from C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\crypto\rsa\s-1-5-18\6d14e4b1... to C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\crypto\rsa\s-1-5-18\6d14e4b1...
from C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\windows defender\definition ... to C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\windows defender\definition ...
from C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\package cache\{bc958bd2-5dac-3862-bb1a-c1be0790438d}v14... to C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\package cache\{bc958bd2-5dac-3862-bb1a-c1be0790438d}v14...
from C:\documents and settings\all users\application data\application data\application data\application data\application data\package cache\{bc958bd2-5dac-3862-bb1a-c1be0790438d}v14.0.23026\packages... to C:\documents and settings\all users\application data\application data\application data\application data\application data\package cache\{bc958bd2-5dac-3862-bb1a-c1be0790438d}v14.0.23026\packages...
from C:\documents and settings\all users\application data\application data\application data\application data\application data\package cache\{be960c1c-7bad-3de6-8b1a-2616fe532845}v14.0.23026\packages... to C:\documents and settings\all users\application data\application data\application data\application data\application data\package cache\{be960c1c-7bad-3de6-8b1a-2616fe532845}v14.0.23026\packages...
from C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\package cache\{be960c1c-7bad-3de6-8b1a-2616fe532845}v14... to C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\package cache\{be960c1c-7bad-3de6-8b1a-2616fe532845}v14...
from C:\documents and settings\all users\adobe\arm\reader_15.007.20033\acrordrdcupd1500920077.msp to C:\documents and settings\all users\adobe\arm\reader_15.007.20033\acrordrdcupd1500920077.msp.ryk
from C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\crypto\keys\68383f0e45dd9b02... to C:\documents and settings\all users\application data\application data\application data\application data\application data\application data\application data\microsoft\crypto\keys\68383f0e45dd9b02...
from C:\documents and settings\user\appdata\local\application data\application data\application data\application data\application data\application data\application data\application data\application ... to C:\documents and settings\user\appdata\local\application data\application data\application data\application data\application data\application data\application data\application data\application ...

Changes user data files extensions (Trojan.Encoder).

Network activity

UDP

'<LOCALNET>.74.1':7
'22#.0.0.22':7
'22#.0.0.252':7

Miscellaneous

Creates and executes the following

'<Current directory>\qvikttc.exe' 8 LAN
'<Current directory>\qvikttc.exe' 8 LAN' (with hidden window)
'<SYSTEM32>\net.exe' stop "audioendpointbuilder" /y' (with hidden window)
'<SYSTEM32>\net.exe' stop "samss" /y' (with hidden window)
'<SYSTEM32>\cmd.exe' /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<SYSTEM32>\Dwm.exe" /f' (with hidden window)
'<SYSTEM32>\cmd.exe' /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<Full path to file>" /f' (with hidden window)
'<SYSTEM32>\cmd.exe' /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<Current directory>\qvIkttC.exe" /f' (with hidden window)

Executes the following

'<SYSTEM32>\net1.exe' stop "audioendpointbuilder" /y
'<SYSTEM32>\net1.exe' stop "samss" /y
'<SYSTEM32>\cmd.exe' /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<SYSTEM32>\Dwm.exe" /f
'<SYSTEM32>\reg.exe' ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<SYSTEM32>\Dwm.exe" /f
'<SYSTEM32>\cmd.exe' /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<Full path to file>" /f
'<SYSTEM32>\reg.exe' ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<Full path to file>" /f
'<SYSTEM32>\cmd.exe' /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<Current directory>\qvIkttC.exe" /f
'<SYSTEM32>\reg.exe' ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "<Current directory>\qvIkttC.exe" /f

Technologies

Terminology

Training and education

Myths

Technical Information

Curing recommendations

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