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Trojan.Encoder.29660

Added to the Dr.Web virus database: 2019-09-30

Virus description added:

Technical Information

To ensure autorun and distribution
Modifies the following registry keys
  • [<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\] 'Client Server Runtime Subsystem' = '"%PROGRAMDATA%\Windows\csrss.exe"'
Creates the following files on removable media
  • <Drive name for removable media>:\readme1.txt
  • <Drive name for removable media>:\readme2.txt
  • <Drive name for removable media>:\readme3.txt
  • <Drive name for removable media>:\readme4.txt
  • <Drive name for removable media>:\readme5.txt
  • <Drive name for removable media>:\readme6.txt
  • <Drive name for removable media>:\readme7.txt
  • <Drive name for removable media>:\readme8.txt
  • <Drive name for removable media>:\readme9.txt
  • <Drive name for removable media>:\readme10.txt
Malicious functions
Creates and executes the following
  • '%TEMP%\rad55511.tmp'
Injects code into
the following user processes:
  • rad55511.tmp
Reads files which store third party applications passwords
  • %HOMEPATH%\desktop\tree_view.htm
  • %HOMEPATH%\desktop\advice_process.htm
  • %HOMEPATH%\desktop\alert.html
  • %HOMEPATH%\desktop\applicantform_en.doc
  • %HOMEPATH%\desktop\browse.html
  • %HOMEPATH%\desktop\contoso.cer
  • %HOMEPATH%\desktop\dashborder_192.bmp
  • %HOMEPATH%\desktop\dial.bmp
  • %HOMEPATH%\desktop\garden.htm
  • %HOMEPATH%\desktop\hadac_newsletter_july_2010_final.docx
  • %HOMEPATH%\desktop\join.avi
  • %HOMEPATH%\desktop\lisp_success.doc
  • %HOMEPATH%\desktop\pmd.cer
  • %HOMEPATH%\desktop\sdkfailsafeemulator.cer
  • %HOMEPATH%\desktop\split.avi
  • %HOMEPATH%\desktop\testcertificate.cer
  • %HOMEPATH%\desktop\000814251_video_01.avi
  • %APPDATA%\thunderbird\profiles.ini
Modifies file system
Creates the following files
  • %TEMP%\rad55511.tmp
  • C:\readme8.txt
  • C:\readme7.txt
  • C:\readme6.txt
  • C:\readme5.txt
  • C:\readme4.txt
  • C:\readme3.txt
  • C:\readme2.txt
  • C:\readme1.txt
  • D:\readme10.txt
  • D:\readme9.txt
  • D:\readme8.txt
  • C:\readme9.txt
  • D:\readme7.txt
  • D:\readme5.txt
  • D:\readme4.txt
  • D:\readme3.txt
  • D:\readme2.txt
  • D:\readme1.txt
  • %TEMP%\6893a5~1\cached-microdescs.new
  • %TEMP%\6893a5~1\cached-microdesc-consensus.tmp
  • %TEMP%\6893a5~1\cached-certs.tmp
  • %TEMP%\6893a5~1\unverified-microdesc-consensus.tmp
  • %TEMP%\6893a5~1\state.tmp
  • %PROGRAMDATA%\windows\csrss.exe
  • D:\readme6.txt
  • C:\readme10.txt
Deletes the following files
  • %TEMP%\6893a5~1\unverified-microdesc-consensus
Moves the following files
  • from %TEMP%\6893a5~1\state.tmp to %TEMP%\6893a5~1\state
  • from %APPDATA%\opera software\opera stable\storage\ext\sync-login\def\databases\databases.db to %APPDATA%\opera software\opera stable\storage\ext\sync-login\def\databases\ymvvhxjsscr20+8slyqcpiy6mgq-niak+ooz8f0klum=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\opera software\opera stable\extension state\000007.log to %APPDATA%\opera software\opera stable\extension state\4vkdzbr2p+gd3muvkr5shr3jolk1mixg3v-pvoqp+gy=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\opera software\opera stable\dictionaries\dictionaries.xml to %APPDATA%\opera software\opera stable\dictionaries\to8evwhg3cefassjm5f8aui56ttjoxsk+6kx6r0r71i=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\opera software\opera stable\databases\databases.db to %APPDATA%\opera software\opera stable\databases\5ad-fd8y3ib-taxjsadxjba-vvbinxx8va0lcn4yfcm=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\opera software\opera stable\thumbnails.db to %APPDATA%\opera software\opera stable\cja8kub9cqrvz8zopfqgynh0+szrv5cmnewatxwoava=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\opera software\opera stable\siteprefs.json to %APPDATA%\opera software\opera stable\3dnaluev0to1le8t9oqkrgopqejg-7+rtms6yht1td8=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\opera software\opera stable\session.db to %APPDATA%\opera software\opera stable\hif0qsyxv+tm2ep9vpkokwijkq2hgldi6jul98p3dfq=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\opera software\opera stable\opera_shutdown_ms.txt to %APPDATA%\opera software\opera stable\epvbt-prjekxini4vtk8ym8nxob9qsifm0gy3fhk2xxae3pj6ylpx4w2yht4bnmw.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\opera software\opera stable\opera_autoupdate.log to %APPDATA%\opera software\opera stable\mqw47eletmzdjqo3d7g8y6t1q5eixtvstjcivuk-mgpridcnljgzj00aqnpzukla.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\opera software\opera stable\favorites.db to %APPDATA%\opera software\opera stable\lx-uafgtlixiiez2t6diuzalbq9pmfwkuaiy-gaqf3k=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\opera software\opera stable\update_prefs.json to %APPDATA%\opera software\opera stable\zh-goovovmswxy1bap4kpxiggjaud3l4u-o2ar9gc3donrti8rtj8xj2h48mntfk.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\opera software\opera stable\bookmarks.bak to %APPDATA%\opera software\opera stable\fqsih6wud9g6mhxyfa+wz2jtibjpwm2efzdczgx+558=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\xulstore.json to %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\xctnhgta+rhiqq+m1qsy24rgiytwpatoia5e16dwzzw=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\mra\update\ver.txt to %APPDATA%\mra\update\xbykvnfdetaljo001iei5w==.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\mra\installerlang.xml to %APPDATA%\mra\tnro0ffleqotoudu95k1apo0tszsnh9q0nlkolhmdamiv+voy47d1myam-z1xh+f.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\sessionstore-backups\recovery.js to %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\sessionstore-backups\riqbxifbi8v8sdsq7bunhkyhkcuunfolgdgwnkuvwl4=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\sessionstore-backups\previous.js to %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\sessionstore-backups\ldiujws8lwjls-8w6tvfikb372u2tcxrzlzsk4palw0=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\webapps\webapps.json to %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\webapps\2whhkgo9rt5ycymsj7sotp89f7+qjholmrss8ofx6ju=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\datareporting\state.json to %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\datareporting\ujfwqrmpm8-rnyol86bxomz4n8zjg4fw-zmjqfx0nds=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\secmod.db to %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\uuwbmu605b8v2srzk6ctosc93j3z9aw+hb0au8o6y4s=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\search.json to %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\pw0iowemwfbkux-b1ykbkmxvwgb8sqjr6eqaqb-f-nc=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\revocations.txt to %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\nexig6vxpdly1iqfhdmgqwckxxntaho+fxbzovnwytw=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\prefs.js to %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\ia3d2qivrhtnocr0cjo3rw==.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\pluginreg.dat to %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\8a022x1bzvqzndfv7ebwpqp3pikvx+yyhiwk9e8a2ye=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\telegram desktop\log.txt to %APPDATA%\telegram desktop\4xgkxamafxph1zwi6i8wca==.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\opera software\opera stable\browser.js to %APPDATA%\opera software\opera stable\nm-kvcjx+n73jhuit8xhlvix7azywnhtz9xy8v4btui=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\telegram desktop\unins000.dat to %APPDATA%\telegram desktop\nmax6trtkldo9y7iq3ogivqae+zqmyze7udxeefv28i=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\session.json to %APPDATA%\thunderbird\profiles\wjj9aet2.default\ppufvbpesz3zqknlbiwbwvwowbnm9ma6vr9g8oimx6o=.a0a868d5c2f92eae6170.crypted000007
  • from %TEMP%\6893a5~1\unverified-microdesc-consensus.tmp to %TEMP%\6893a5~1\unverified-microdesc-consensus
  • from %TEMP%\6893a5~1\cached-certs.tmp to %TEMP%\6893a5~1\cached-certs
  • from %TEMP%\6893a5~1\cached-microdesc-consensus.tmp to %TEMP%\6893a5~1\cached-microdesc-consensus
  • from %APPDATA%\winamp\plugins\milkdrop2\milk2_msg.ini to %APPDATA%\winamp\plugins\milkdrop2\virwfxpghwlqx4eolyz9sdqz92hme7i4bmfq-gub+he=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\winamp\plugins\milkdrop2\milk2_img.ini to %APPDATA%\winamp\plugins\milkdrop2\vjvjtmp-swmygt7v6bmxccaoarrb19c-bwyynftvifc=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\winamp\winamp.ini to %APPDATA%\winamp\zr2xdi577k2qznxxzi7foawlibhl8erxqoxx4npvvh8=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\winamp\links.xml to %APPDATA%\winamp\mj+6ktubz1wdgm4bsfrctmhy-61c0xkqb0icxhznjjc=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\winamp\demo.mp3 to %APPDATA%\winamp\yhd0clvialjakqh7ttq1xa==.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\virtualfolders.dat to %APPDATA%\thunderbird\profiles\wjj9aet2.default\eqafcg9-83sgctltpdbp7yrrh5uqemq5k7k-3gie6c7a--ntlg4b9boew0re7scv.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\times.json to %APPDATA%\thunderbird\profiles\wjj9aet2.default\xzwc+l5w+ipdltthiiirh1sbzubgiozgij6jdg2gpfi=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\sessioncheckpoints.json to %APPDATA%\thunderbird\profiles\wjj9aet2.default\aa5ve4xwygqltafkzoajbcnlg2vn4yeu9hg-5ptfwmmlydpyq1v683jecn7fddqy.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\secmod.db to %APPDATA%\thunderbird\profiles\wjj9aet2.default\whryi-vuxdezafktxita+i+bogync-il+a8uyso2xkc=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\telegram desktop\tdata\shortcuts-default.json to %APPDATA%\telegram desktop\tdata\ozb1p7gtgbkubbtgvjpsroiklrtftz-v-tpydzpuw1vzikclexgl0qu2odl3j9gy.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\prefs.js to %APPDATA%\thunderbird\profiles\wjj9aet2.default\hi+baqynq72rmki99p6ncq==.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\mailviews.dat to %APPDATA%\thunderbird\profiles\wjj9aet2.default\dw1lmbr8cns40ha+q61cqdd30z8pwj3m5e6zq+xqmz0=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\localstore.rdf to %APPDATA%\thunderbird\profiles\wjj9aet2.default\q8xldixnyjjdt7-n-vsavlsbnptigf5c-jk8lyg1cdq=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\key3.db to %APPDATA%\thunderbird\profiles\wjj9aet2.default\kqhddzzyidwsobyujqwxua==.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\foldertree.json to %APPDATA%\thunderbird\profiles\wjj9aet2.default\zfw6cp88xsf+esyl4kysxyzxo+jdyhn2bsl10fdknuw=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\extensions.json to %APPDATA%\thunderbird\profiles\wjj9aet2.default\unjxyydwxhkbmtai4jusobrhu6lpf88vdq1jdmeako0=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\extensions.ini to %APPDATA%\thunderbird\profiles\wjj9aet2.default\yoo9psxzsonpmiaatbzl9xswzzavfgdq1qwta3pkuua=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\compatibility.ini to %APPDATA%\thunderbird\profiles\wjj9aet2.default\khk+zyfybbsxjrpjjydhgr-ki0vwl4waozl80moec+lqrjdjhd+miceuai4lvfcc.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\cert8.db to %APPDATA%\thunderbird\profiles\wjj9aet2.default\wep90rscute2b-kcsyjl0w==.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles\wjj9aet2.default\blocklist.xml to %APPDATA%\thunderbird\profiles\wjj9aet2.default\dh0cytlg1oralgz0-wio6a52p4kxwkys1jnikldi4rk=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\thunderbird\profiles.ini to %APPDATA%\thunderbird\lpshvp7jg6kfx5l2+ut0wqx1m41dtlauo5vmth-czmc=.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\telegram desktop\tdata\shortcuts-custom.json to %APPDATA%\telegram desktop\tdata\5dkcwdbvyozt4qee3saxujgglhygbdstgjkgg6swo08chln2+wvaddbewuoi4rb4.a0a868d5c2f92eae6170.crypted000007
  • from %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\mimetypes.rdf to %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\y2uudyp8eg+ekmnbmlsudi-izclxdil1wsxlnhmhuue=.a0a868d5c2f92eae6170.crypted000007
Deletes itself.
Modifies user data files (Trojan.Encoder).
Network activity
TCP
HTTP GET requests
  • http://sa###dninth.com/templates/beez/html/com_contact/category/2c.jpg
  • http://ip#####.#hatismyipaddress.com/
  • http://a4#####2xzclh6fd.onion/reg.php?i=##################################
UDP
  • DNS ASK sa###dninth.com
  • DNS ASK ip#####.#hatismyipaddress.com
Miscellaneous
Creates and executes the following
  • '<SYSTEM32>\cmd.exe' /c %TEMP%\rad55511.tmp' (with hidden window)
  • '<SYSTEM32>\vssadmin.exe' List Shadows' (with hidden window)
  • '%WINDIR%\syswow64\cmd.exe' ' (with hidden window)
Executes the following
  • '<SYSTEM32>\cmd.exe' /c %TEMP%\rad55511.tmp
  • '<SYSTEM32>\vssadmin.exe' List Shadows
  • '<SYSTEM32>\vssvc.exe'
  • '<SYSTEM32>\svchost.exe' -k swprv
  • '%WINDIR%\syswow64\cmd.exe'
  • '%WINDIR%\syswow64\chcp.com'

Curing recommendations

  1. If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
  2. If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
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Download by serial number

Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

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Download by serial number

  1. If the mobile device is operating normally, download and install Dr.Web for Android. Run a full system scan and follow recommendations to neutralize the detected threats.
  2. If the mobile device has been locked by Android.Locker ransomware (the message on the screen tells you that you have broken some law or demands a set ransom amount; or you will see some other announcement that prevents you from using the handheld normally), do the following:
    • Load your smartphone or tablet in the safe mode (depending on the operating system version and specifications of the particular mobile device involved, this procedure can be performed in various ways; seek clarification from the user guide that was shipped with the device, or contact its manufacturer);
    • Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
    • Switch off your device and turn it on as normal.

Find out more about Dr.Web for Android