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Trojan.DownLoader35.3862

Added to the Dr.Web virus database: 2020-10-20

Virus description added:

Technical Information

Modifies file system
Creates the following files
  • %WINDIR%\temp\asw.40a08529804f043f\ecoo.edat
  • %WINDIR%\temp\asw.57556a6f8ba04c11\setup.def
  • %WINDIR%\temp\asw.57556a6f8ba04c11\stats.ini.tmp
  • %WINDIR%\temp\asw.57556a6f8ba04c11\avbugreport_x64_ais-980.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\avdump_x64_ais-980.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\avdump_x86_ais-980.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\offertool_x64_ais-980.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\sbr_x64_ais-980.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\asw12f29d618425852c.tmp
  • %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\asw0f37375f1646a970.tmp
  • %WINDIR%\temp\asw.57556a6f8ba04c11\servers.def.lkg
  • %WINDIR%\temp\asw.57556a6f8ba04c11\uat_1900.dll
  • %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\asw575db585fd5b9d87.tmp
  • %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\aswf3c10e20ecdc8f9a.tmp
  • %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\aswb2cb5d5f5f3378f9.tmp
  • %WINDIR%\temp\asw.57556a6f8ba04c11\uat_2164.dll
  • %WINDIR%\temp\asw.57556a6f8ba04c11\program.def
  • %WINDIR%\temp\asw.57556a6f8ba04c11\part-jrog2-26.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\part-vps_windows-20101803.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\vps.def
  • %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\gcapi_16031548122712.dll
  • %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\gcapi_16031548122636.dll
  • %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\asw0c1b4fde6fab98f2.tmp
  • %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\asw2960fa1c741ff6d9.tmp
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log.tmp.b60b23ae-7365-44db-a87f-374653e80bcc
  • %WINDIR%\temp\asw.57556a6f8ba04c11\config.ini
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log.tmp.40105ca7-0184-4488-840d-6e087f16284e
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log
  • %WINDIR%\temp\asw.57556a6f8ba04c11\servers.def
  • %WINDIR%\temp\asw.57556a6f8ba04c11\config.def
  • %WINDIR%\temp\asw.57556a6f8ba04c11\config.def.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\instup.exe
  • %WINDIR%\temp\asw.57556a6f8ba04c11\instcont_x64_ais-980.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\instup.dll
  • %WINDIR%\temp\asw.57556a6f8ba04c11\instup_x64_ais-980.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\part-jrog2-6e9.vpx
  • %WINDIR%\temp\asw.40a08529804f043f\avast_free_antivirus_setup_online_x64.exe
  • %WINDIR%\temp\asw.57556a6f8ba04c11\part-prg_ais-14080980.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\part-vps_windows-20100602.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\prod-pgm.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\prod-vps.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\servers.def.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\htmlayout.dll
  • %WINDIR%\temp\asw.57556a6f8ba04c11\setgui_x64_ais-980.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\uat.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\uat64.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\uata64.vpx
  • %WINDIR%\temp\asw.57556a6f8ba04c11\config.def.new
  • %WINDIR%\temp\asw.57556a6f8ba04c11\part-setup_ais-14080980.vpx
  • C:\users\public\documents\aswoffertool.exe
  • C:\users\public\documents\gcapi_16031548132432.dll
Deletes the following files
  • %WINDIR%\temp\asw.57556a6f8ba04c11\uat_1900.dll
  • %WINDIR%\temp\asw.57556a6f8ba04c11\uat_2164.dll
  • %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\gcapi_16031548122712.dll
  • C:\users\public\documents\gcapi_16031548132432.dll
  • C:\users\public\documents\aswoffertool.exe
  • %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\gcapi_16031548122636.dll
Moves the following files
  • from %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log.tmp.40105ca7-0184-4488-840d-6e087f16284e to %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log
  • from %WINDIR%\temp\asw.40a08529804f043f\ecoo.edat to %WINDIR%\temp\asw.57556a6f8ba04c11\cookie.bin
  • from %WINDIR%\temp\asw.57556a6f8ba04c11\config.def.new to %WINDIR%\temp\asw.57556a6f8ba04c11\config.def
  • from %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log.tmp.b60b23ae-7365-44db-a87f-374653e80bcc to %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log
  • from %WINDIR%\temp\asw.57556a6f8ba04c11\stats.ini.tmp to %WINDIR%\temp\asw.57556a6f8ba04c11\stats.ini
  • from %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\asw12f29d618425852c.tmp to %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\avbugreport.exe
  • from %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\asw0f37375f1646a970.tmp to %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\avdump.exe
  • from %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\asw575db585fd5b9d87.tmp to %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\instup.exe
  • from %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\asw0c1b4fde6fab98f2.tmp to %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\instup.dll
  • from %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\asw2960fa1c741ff6d9.tmp to %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\aswoffertool.exe
  • from %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\aswf3c10e20ecdc8f9a.tmp to %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\sbr.exe
  • from %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\aswb2cb5d5f5f3378f9.tmp to %WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\htmlayout.dll
Substitutes the following files
  • %WINDIR%\temp\asw.57556a6f8ba04c11\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://d3######.iavs9x.u.avast.com/iavs9x/prod-pgm.vpx
  • http://d3######.iavs9x.u.avast.com/iavs9x/avbugreport_x64_ais-980.vpx
  • http://d3######.iavs9x.u.avast.com/iavs9x/avdump_x64_ais-980.vpx
  • http://d3######.iavs9x.u.avast.com/iavs9x/avdump_x86_ais-980.vpx
  • http://d3######.iavs9x.u.avast.com/iavs9x/offertool_x64_ais-980.vpx
  • http://d3######.iavs9x.u.avast.com/iavs9x/sbr_x64_ais-980.vpx
  • http://y8######.iavs9x.u.avast.com/iavs9x/prod-pgm.vpx
  • http://m0######.vps18tiny.u.avcdn.net/vps18tiny/prod-vps.vpx
  • http://m0######.vps18tiny.u.avcdn.net/vps18tiny/part-jrog2-26.vpx
  • http://m0######.vps18tiny.u.avcdn.net/vps18tiny/part-vps_windows-20101803.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 b8######.vps18tiny.u.avcdn.net
    • DNS ASK 2.###l.ntp.org
    • DNS ASK ss#.####le-analytics.com
    • 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 s1######.vps18tiny.u.avcdn.net
    • DNS ASK s-#####tiny.avcdn.net
    • DNS ASK m0######.vps18tiny.u.avcdn.net
    • DNS ASK h4######.vps18tiny.u.avcdn.net
    • DNS ASK p9######.iavs9x.u.avast.com
    • DNS ASK 3.###l.ntp.org
    • DNS ASK p1######.iavs9x.u.avast.com
    • DNS ASK j0######.iavs9x.u.avast.com
    • DNS ASK y8######.iavs9x.u.avast.com
    • DNS ASK s-####9x.avcdn.net
    • DNS ASK h4######.iavs9x.u.avast.com
    • DNS ASK d3######.iavs9x.u.avast.com
    • DNS ASK b8######.iavs9x.u.avast.com
    • DNS ASK sh#####d.ff.avast.com
    • DNS ASK v7#####.stats.avast.com
    • DNS ASK ia####.u.avast.com
    • DNS ASK y9######.iavs9x.u.avast.com
    • DNS ASK g1######.vps18tiny.u.avcdn.net
    • '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.40a08529804f043f\avast_free_antivirus_setup_online_x64.exe' /cookie:mmm_lvs_ppi_002_967_t /ga_clientid:71e53122-4767-4192-befd-c8cb02152ef0 /edat_dir:%WINDIR%\Temp\asw.40a08529804f043f
    • '%WINDIR%\temp\asw.57556a6f8ba04c11\instup.exe' /sfx:lite /sfxstorage:%WINDIR%\Temp\asw.57556a6f8ba04c11 /edition:1 /prod:ais /guid:a6733988-8432-4aee-8a4b-130c8050db48 /ga_clientid:71e53122-4767-4192-befd-c8cb02152ef0 /cookie:mmm_lvs_ppi_00...
    • '%WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\instup.exe' /sfx /sfxstorage:%WINDIR%\Temp\asw.57556a6f8ba04c11 /edition:1 /prod:ais /guid:a6733988-8432-4aee-8a4b-130c8050db48 /ga_clientid:71e53122-4767-4192-befd-c8cb02152ef0 /cookie:mmm_lvs_ppi_002_967...
    • '%WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\aswoffertool.exe' -checkChrome -elevated
    • '%WINDIR%\temp\asw.57556a6f8ba04c11\new_14080980\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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