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Trojan.DownLoader36.26734

Added to the Dr.Web virus database: 2020-12-06

Virus description added:

Technical Information

Modifies file system
Creates the following files
  • %WINDIR%\temp\asw.1c2a73636a817a9b\ecoo.edat
  • %WINDIR%\temp\asw.20162a075d446cc2\setup.def
  • %WINDIR%\temp\asw.20162a075d446cc2\stats.ini.tmp
  • %WINDIR%\temp\asw.20162a075d446cc2\avbugreport_x64_ais-985.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\avdump_x64_ais-985.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\avdump_x86_ais-985.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\offertool_x64_ais-985.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\sbr_x64_ais-985.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\asw3a0acace36c55e45.tmp
  • %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\asw79f74e5ad51437cc.tmp
  • %WINDIR%\temp\asw.20162a075d446cc2\servers.def.lkg
  • %WINDIR%\temp\asw.20162a075d446cc2\uat_788.dll
  • %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\asw68b7f172df85db5f.tmp
  • %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\asw96e86113d4053b59.tmp
  • %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\aswb5d5a142cc83ec8e.tmp
  • %WINDIR%\temp\asw.20162a075d446cc2\uat_2612.dll
  • %WINDIR%\temp\asw.20162a075d446cc2\program.def
  • %WINDIR%\temp\asw.20162a075d446cc2\part-jrog2-57.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\part-vps_windows-20120405.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\vps.def
  • %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\gcapi_16072987212296.dll
  • %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\gcapi_16072987212500.dll
  • %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\asw201077ce8bb9142e.tmp
  • %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\aswab1a954f8909c97e.tmp
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log.tmp.17dfb0b7-2ff2-46c1-b1d1-10b784f361dc
  • %WINDIR%\temp\asw.20162a075d446cc2\config.ini
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log.tmp.240a8799-c1de-4495-964f-2b6870273796
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log
  • %WINDIR%\temp\asw.20162a075d446cc2\servers.def
  • %WINDIR%\temp\asw.20162a075d446cc2\config.def
  • %WINDIR%\temp\asw.20162a075d446cc2\config.def.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\instup.exe
  • %WINDIR%\temp\asw.20162a075d446cc2\instcont_x64_ais-985.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\instup.dll
  • %WINDIR%\temp\asw.20162a075d446cc2\instup_x64_ais-985.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\part-jrog2-73a.vpx
  • %WINDIR%\temp\asw.1c2a73636a817a9b\avast_free_antivirus_setup_online_x64.exe
  • %WINDIR%\temp\asw.20162a075d446cc2\part-prg_ais-14090985.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\part-vps_windows-20110904.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\prod-pgm.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\prod-vps.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\servers.def.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\htmlayout.dll
  • %WINDIR%\temp\asw.20162a075d446cc2\setgui_x64_ais-985.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\uat64.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\uata64.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\uat.vpx
  • %WINDIR%\temp\asw.20162a075d446cc2\config.def.new
  • %WINDIR%\temp\asw.20162a075d446cc2\part-setup_ais-14090985.vpx
  • C:\users\public\documents\aswoffertool.exe
  • C:\users\public\documents\gcapi_1607298722572.dll
Deletes the following files
  • %WINDIR%\temp\asw.20162a075d446cc2\uat_788.dll
  • %WINDIR%\temp\asw.20162a075d446cc2\uat_2612.dll
  • %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\gcapi_16072987212296.dll
  • C:\users\public\documents\gcapi_1607298722572.dll
  • C:\users\public\documents\aswoffertool.exe
  • %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\gcapi_16072987212500.dll
Moves the following files
  • from %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log.tmp.240a8799-c1de-4495-964f-2b6870273796 to %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log
  • from %WINDIR%\temp\asw.1c2a73636a817a9b\ecoo.edat to %WINDIR%\temp\asw.20162a075d446cc2\cookie.bin
  • from %WINDIR%\temp\asw.20162a075d446cc2\config.def.new to %WINDIR%\temp\asw.20162a075d446cc2\config.def
  • from %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log.tmp.17dfb0b7-2ff2-46c1-b1d1-10b784f361dc to %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log
  • from %WINDIR%\temp\asw.20162a075d446cc2\stats.ini.tmp to %WINDIR%\temp\asw.20162a075d446cc2\stats.ini
  • from %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\asw3a0acace36c55e45.tmp to %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\avbugreport.exe
  • from %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\asw79f74e5ad51437cc.tmp to %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\avdump.exe
  • from %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\asw68b7f172df85db5f.tmp to %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\instup.exe
  • from %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\asw201077ce8bb9142e.tmp to %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\instup.dll
  • from %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\aswab1a954f8909c97e.tmp to %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\aswoffertool.exe
  • from %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\asw96e86113d4053b59.tmp to %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\sbr.exe
  • from %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\aswb5d5a142cc83ec8e.tmp to %WINDIR%\temp\asw.20162a075d446cc2\new_14090985\htmlayout.dll
Substitutes the following files
  • %WINDIR%\temp\asw.20162a075d446cc2\config.def.new
Network activity
TCP
HTTP GET requests
  • http://ia####.u.avast.com/iavs9x/avast_free_antivirus_setup_online_x64.exe
  • http://www.go#####analytics.com/collect?ai#######################################################################################################################################################...
  • http://h4######.iavs9x.u.avast.com/iavs9x/servers.def.vpx
  • http://r9######.iavs9x.u.avast.com/iavs9x/prod-pgm.vpx
  • http://r9######.iavs9x.u.avast.com/iavs9x/avbugreport_x64_ais-985.vpx
  • http://r9######.iavs9x.u.avast.com/iavs9x/avdump_x64_ais-985.vpx
  • http://r9######.iavs9x.u.avast.com/iavs9x/avdump_x86_ais-985.vpx
  • http://r9######.iavs9x.u.avast.com/iavs9x/offertool_x64_ais-985.vpx
  • http://r9######.iavs9x.u.avast.com/iavs9x/sbr_x64_ais-985.vpx
  • http://p9######.iavs9x.u.avast.com/iavs9x/prod-pgm.vpx
  • http://b7######.vps18tiny.u.avcdn.net/vps18tiny/prod-vps.vpx
  • http://b7######.vps18tiny.u.avcdn.net/vps18tiny/part-jrog2-57.vpx
  • http://b7######.vps18tiny.u.avcdn.net/vps18tiny/part-vps_windows-20120405.vpx
HTTP POST requests
  • http://www.go#####analytics.com/collect
  • http://v7#####.stats.avast.com/cgi-bin/iavsevents.cgi
  • 'ia####.u.avast.com':443
  • 'v7#####.stats.avast.com':443
  • 'sh#####d.ff.avast.com':443
  • 'al########nse-dealer.ff.avast.com':443
  • 'al#####qs.ff.avast.com':443
  • 'ss#.####le-analytics.com':443
    • UDP
    • DNS ASK go#####analytics.com
    • DNS ASK f3######.vps18tiny.u.avcdn.net
    • DNS ASK 3.###l.ntp.org
    • DNS ASK 2.###l.ntp.org
    • DNS ASK 1.###l.ntp.org
    • DNS ASK 0.###l.ntp.org
    • DNS ASK al#####qs.ff.avast.com
    • DNS ASK al########nse-dealer.ff.avast.com
    • DNS ASK s-#####tiny.avcdn.net
    • DNS ASK r9######.vps18tiny.u.avcdn.net
    • DNS ASK r6######.vps18tiny.u.avcdn.net
    • DNS ASK l4######.vps18tiny.u.avcdn.net
    • DNS ASK v7#####.stats.avast.com
    • DNS ASK b7######.vps18tiny.u.avcdn.net
    • DNS ASK ia####.u.avast.com
    • DNS ASK sh#####d.ff.avast.com
    • DNS ASK y9######.iavs9x.u.avast.com
    • DNS ASK h4######.iavs9x.u.avast.com
    • DNS ASK b8######.iavs9x.u.avast.com
    • DNS ASK r9######.iavs9x.u.avast.com
    • DNS ASK s-####9x.avcdn.net
    • DNS ASK p1######.iavs9x.u.avast.com
    • DNS ASK p9######.iavs9x.u.avast.com
    • DNS ASK r3######.iavs9x.u.avast.com
    • DNS ASK ss#.####le-analytics.com
    • DNS ASK r0######.iavs9x.u.avast.com
    • '1.###l.ntp.org':123
    • '2.###l.ntp.org':123
    • '0.###l.ntp.org':123
    • '3.###l.ntp.org':123
    Miscellaneous
    Creates and executes the following
    • '%WINDIR%\temp\asw.1c2a73636a817a9b\avast_free_antivirus_setup_online_x64.exe' /cookie:mmm_ava_013_999_j4l_m /ga_clientid:6865a92b-5707-496f-8ddd-ffddd05026b7 /edat_dir:%WINDIR%\Temp\asw.1c2a73636a817a9b
    • '%WINDIR%\temp\asw.20162a075d446cc2\instup.exe' /sfx:lite /sfxstorage:%WINDIR%\Temp\asw.20162a075d446cc2 /edition:1 /prod:ais /guid:8e79d69a-23ef-408e-823b-2db64929773d /ga_clientid:6865a92b-5707-496f-8ddd-ffddd05026b7 /cookie:mmm_ava_013_99...
    • '%WINDIR%\temp\asw.20162a075d446cc2\new_14090985\instup.exe' /sfx /sfxstorage:%WINDIR%\Temp\asw.20162a075d446cc2 /edition:1 /prod:ais /guid:8e79d69a-23ef-408e-823b-2db64929773d /ga_clientid:6865a92b-5707-496f-8ddd-ffddd05026b7 /cookie:mmm_ava_013_999_j4l...
    • '%WINDIR%\temp\asw.20162a075d446cc2\new_14090985\aswoffertool.exe' -checkChrome -elevated
    • '%WINDIR%\temp\asw.20162a075d446cc2\new_14090985\aswoffertool.exe' -checkChromeReactivation -elevated -bc=AVFA
    • 'C:\users\public\documents\aswoffertool.exe' -checkChromeReactivation -bc=AVFA
    • '%WINDIR%\temp\asw.20162a075d446cc2\new_14090985\aswoffertool.exe' -checkGToolbar -elevated

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    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.
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