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Trojan.DownLoader34.55867

Added to the Dr.Web virus database: 2020-09-28

Virus description added:

Technical Information

Modifies file system
Creates the following files
  • %WINDIR%\temp\asw.4795f191b22da0c0\ecoo.edat
  • %WINDIR%\temp\asw.d2e537b7e7df5173\setup.def
  • %WINDIR%\temp\asw.d2e537b7e7df5173\stats.ini.tmp
  • %WINDIR%\temp\asw.d2e537b7e7df5173\avbugreport_x64_ais-979.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\avdump_x64_ais-979.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\avdump_x86_ais-979.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\offertool_x64_ais-979.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\sbr_x64_ais-979.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\asw45fdb6098fef2d47.tmp
  • %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\asw0a8d9ed77468880b.tmp
  • %WINDIR%\temp\asw.d2e537b7e7df5173\servers.def.lkg
  • %WINDIR%\temp\asw.d2e537b7e7df5173\uat_980.dll
  • %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\asw0ed1693d29c18e9d.tmp
  • %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\asw6b4d58d132d78964.tmp
  • %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\asw5fca2fd6627add5d.tmp
  • %WINDIR%\temp\asw.d2e537b7e7df5173\uat_1028.dll
  • %WINDIR%\temp\asw.d2e537b7e7df5173\program.def
  • %WINDIR%\temp\asw.d2e537b7e7df5173\part-jrog2-e.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\part-vps_windows-20092605.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\vps.def
  • %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\gcapi_16012551702580.dll
  • %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\gcapi_16012551702136.dll
  • %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\asw5f72b91eece63c11.tmp
  • %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\asw3e976c8645a7c41e.tmp
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log.tmp.6a32767a-e6fa-4a72-ab72-b7df85fd30d2
  • %WINDIR%\temp\asw.d2e537b7e7df5173\config.ini
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log.tmp.2201a56e-9612-4004-bdc7-999f3c72e751
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log
  • %WINDIR%\temp\asw.d2e537b7e7df5173\servers.def
  • %WINDIR%\temp\asw.d2e537b7e7df5173\config.def.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\config.def
  • %WINDIR%\temp\asw.d2e537b7e7df5173\part-jrog2-69d.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\instup.dll
  • %WINDIR%\temp\asw.d2e537b7e7df5173\instup_x64_ais-979.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\part-prg_ais-14070979.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\part-setup_ais-14070979.vpx
  • %WINDIR%\temp\asw.4795f191b22da0c0\avast_free_antivirus_setup_online_x64.exe
  • %WINDIR%\temp\asw.d2e537b7e7df5173\part-vps_windows-20090100.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\prod-vps.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\htmlayout.dll
  • %WINDIR%\temp\asw.d2e537b7e7df5173\servers.def.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\uat.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\setgui_x64_ais-979.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\instup.exe
  • %WINDIR%\temp\asw.d2e537b7e7df5173\instcont_x64_ais-979.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\uat64.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\uata64.vpx
  • %WINDIR%\temp\asw.d2e537b7e7df5173\config.def.new
  • %WINDIR%\temp\asw.d2e537b7e7df5173\prod-pgm.vpx
  • C:\users\public\documents\aswoffertool.exe
  • C:\users\public\documents\gcapi_16012551711264.dll
Deletes the following files
  • %WINDIR%\temp\asw.d2e537b7e7df5173\uat_980.dll
  • %WINDIR%\temp\asw.d2e537b7e7df5173\uat_1028.dll
  • %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\gcapi_16012551702580.dll
  • C:\users\public\documents\gcapi_16012551711264.dll
  • C:\users\public\documents\aswoffertool.exe
  • %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\gcapi_16012551702136.dll
Moves the following files
  • from %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log.tmp.2201a56e-9612-4004-bdc7-999f3c72e751 to %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log
  • from %WINDIR%\temp\asw.4795f191b22da0c0\ecoo.edat to %WINDIR%\temp\asw.d2e537b7e7df5173\cookie.bin
  • from %WINDIR%\temp\asw.d2e537b7e7df5173\config.def.new to %WINDIR%\temp\asw.d2e537b7e7df5173\config.def
  • from %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log.tmp.6a32767a-e6fa-4a72-ab72-b7df85fd30d2 to %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log
  • from %WINDIR%\temp\asw.d2e537b7e7df5173\stats.ini.tmp to %WINDIR%\temp\asw.d2e537b7e7df5173\stats.ini
  • from %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\asw45fdb6098fef2d47.tmp to %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\avbugreport.exe
  • from %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\asw0a8d9ed77468880b.tmp to %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\avdump.exe
  • from %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\asw0ed1693d29c18e9d.tmp to %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\instup.exe
  • from %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\asw5f72b91eece63c11.tmp to %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\instup.dll
  • from %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\asw3e976c8645a7c41e.tmp to %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\aswoffertool.exe
  • from %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\asw6b4d58d132d78964.tmp to %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\sbr.exe
  • from %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\asw5fca2fd6627add5d.tmp to %WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\htmlayout.dll
Substitutes the following files
  • %WINDIR%\temp\asw.d2e537b7e7df5173\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://n4######.iavs9x.u.avast.com/iavs9x/servers.def.vpx
  • http://n4######.iavs9x.u.avast.com/iavs9x/prod-pgm.vpx
  • http://n4######.iavs9x.u.avast.com/iavs9x/avbugreport_x64_ais-979.vpx
  • http://n4######.iavs9x.u.avast.com/iavs9x/avdump_x64_ais-979.vpx
  • http://n4######.iavs9x.u.avast.com/iavs9x/avdump_x86_ais-979.vpx
  • http://n4######.iavs9x.u.avast.com/iavs9x/offertool_x64_ais-979.vpx
  • http://n4######.iavs9x.u.avast.com/iavs9x/sbr_x64_ais-979.vpx
  • http://n8######.iavs9x.u.avast.com/iavs9x/prod-pgm.vpx
  • http://r4######.vps18tiny.u.avcdn.net/vps18tiny/prod-vps.vpx
  • http://r4######.vps18tiny.u.avcdn.net/vps18tiny/part-jrog2-e.vpx
  • http://r4######.vps18tiny.u.avcdn.net/vps18tiny/part-vps_windows-20092605.vpx
HTTP POST requests
  • http://www.go#####analytics.com/collect
  • http://v7#####.stats.avast.com/cgi-bin/iavsevents.cgi
  • '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 c3######.vps18tiny.u.avcdn.net
    • 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 w5######.vps18tiny.u.avcdn.net
    • DNS ASK t1######.vps18tiny.u.avcdn.net
    • DNS ASK s-#####tiny.avcdn.net
    • DNS ASK r4######.vps18tiny.u.avcdn.net
    • DNS ASK n2######.vps18tiny.u.avcdn.net
    • DNS ASK 3.###l.ntp.org
    • DNS ASK z4######.iavs9x.u.avast.com
    • DNS ASK g1######.iavs9x.u.avast.com
    • DNS ASK s-####9x.avcdn.net
    • DNS ASK r0######.iavs9x.u.avast.com
    • DNS ASK p1######.iavs9x.u.avast.com
    • DNS ASK n8######.iavs9x.u.avast.com
    • DNS ASK n4######.iavs9x.u.avast.com
    • DNS ASK l4######.iavs9x.u.avast.com
    • DNS ASK sh#####d.ff.avast.com
    • DNS ASK ia####.u.avast.com
    • DNS ASK v7#####.stats.avast.com
    • DNS ASK r6######.iavs9x.u.avast.com
    • DNS ASK ss#.####le-analytics.com
    • DNS ASK r3######.iavs9x.u.avast.com
    • '0.###l.ntp.org':123
    • '1.###l.ntp.org':123
    • '2.###l.ntp.org':123
    Miscellaneous
    Creates and executes the following
    • '%WINDIR%\temp\asw.4795f191b22da0c0\avast_free_antivirus_setup_online_x64.exe' /cookie:mmm_ava_con_002_532_c /ga_clientid:a101bd21-20fb-435f-808f-f742acff3b99 /edat_dir:%WINDIR%\Temp\asw.4795f191b22da0c0
    • '%WINDIR%\temp\asw.d2e537b7e7df5173\instup.exe' /sfx:lite /sfxstorage:%WINDIR%\Temp\asw.d2e537b7e7df5173 /edition:1 /prod:ais /guid:d7f7f615-9fbd-4174-9553-94c714404ff3 /ga_clientid:a101bd21-20fb-435f-808f-f742acff3b99 /cookie:mmm_ava_con_00...
    • '%WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\instup.exe' /sfx /sfxstorage:%WINDIR%\Temp\asw.d2e537b7e7df5173 /edition:1 /prod:ais /guid:d7f7f615-9fbd-4174-9553-94c714404ff3 /ga_clientid:a101bd21-20fb-435f-808f-f742acff3b99 /cookie:mmm_ava_con_002_532...
    • '%WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\aswoffertool.exe' -checkGToolbar -elevated
    • '%WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\aswoffertool.exe' -checkChrome -elevated
    • '%WINDIR%\temp\asw.d2e537b7e7df5173\new_14070979\aswoffertool.exe' -checkChromeReactivation -elevated -bc=AVFA
    • 'C:\users\public\documents\aswoffertool.exe' -checkChromeReactivation -bc=AVFA

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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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