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Trojan.DownLoader34.57413

Added to the Dr.Web virus database: 2020-10-01

Virus description added:

Technical Information

Modifies file system
Creates the following files
  • %WINDIR%\temp\asw.1196c27b24ce3a1a\ecoo.edat
  • %WINDIR%\temp\asw.5bdcbe240e728b86\setup.def
  • %WINDIR%\temp\asw.5bdcbe240e728b86\stats.ini.tmp
  • %WINDIR%\temp\asw.5bdcbe240e728b86\avbugreport_x64_ais-97d.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\avdump_x64_ais-97d.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\avdump_x86_ais-97d.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\offertool_x64_ais-97d.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\sbr_x64_ais-97d.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\asw8add144a80b29c32.tmp
  • %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\asw3cfbab56b74f2f74.tmp
  • %WINDIR%\temp\asw.5bdcbe240e728b86\servers.def.lkg
  • %WINDIR%\temp\asw.5bdcbe240e728b86\uat_2840.dll
  • %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\aswce4ef099d25bec56.tmp
  • %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\aswe71a2f89e77dedfc.tmp
  • %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\asw90d026fc740b23cd.tmp
  • %WINDIR%\temp\asw.5bdcbe240e728b86\uat_2124.dll
  • %WINDIR%\temp\asw.5bdcbe240e728b86\program.def
  • %WINDIR%\temp\asw.5bdcbe240e728b86\part-jrog2-12.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\part-vps_windows-20093005.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\vps.def
  • %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\gcapi_16015966842744.dll
  • %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\gcapi_16015966852716.dll
  • %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\aswc759114cc6ec67df.tmp
  • %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\aswcc2d756d3de32d6f.tmp
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log.tmp.cffc7e78-7956-4bfd-93b9-7576e1a8b49d
  • %WINDIR%\temp\asw.5bdcbe240e728b86\config.ini
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log.tmp.f83d37db-c49f-4f18-bc9a-cce5753db4fa
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log
  • %WINDIR%\temp\asw.5bdcbe240e728b86\servers.def
  • %WINDIR%\temp\asw.5bdcbe240e728b86\config.def
  • %WINDIR%\temp\asw.5bdcbe240e728b86\config.def.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\instup.exe
  • %WINDIR%\temp\asw.5bdcbe240e728b86\instcont_x64_ais-97d.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\instup.dll
  • %WINDIR%\temp\asw.5bdcbe240e728b86\instup_x64_ais-97d.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\part-jrog2-6dd.vpx
  • %WINDIR%\temp\asw.1196c27b24ce3a1a\avast_free_antivirus_setup_online_x64.exe
  • %WINDIR%\temp\asw.5bdcbe240e728b86\part-prg_ais-1408097d.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\part-vps_windows-20093000.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\prod-pgm.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\prod-vps.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\servers.def.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\htmlayout.dll
  • %WINDIR%\temp\asw.5bdcbe240e728b86\setgui_x64_ais-97d.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\uat.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\uata64.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\uat64.vpx
  • %WINDIR%\temp\asw.5bdcbe240e728b86\config.def.new
  • %WINDIR%\temp\asw.5bdcbe240e728b86\part-setup_ais-1408097d.vpx
  • C:\users\public\documents\aswoffertool.exe
  • C:\users\public\documents\gcapi_16015966852568.dll
Deletes the following files
  • %WINDIR%\temp\asw.5bdcbe240e728b86\uat_2840.dll
  • %WINDIR%\temp\asw.5bdcbe240e728b86\uat_2124.dll
  • %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\gcapi_16015966842744.dll
  • C:\users\public\documents\gcapi_16015966852568.dll
  • C:\users\public\documents\aswoffertool.exe
  • %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\gcapi_16015966852716.dll
Moves the following files
  • from %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log.tmp.f83d37db-c49f-4f18-bc9a-cce5753db4fa to %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log
  • from %WINDIR%\temp\asw.1196c27b24ce3a1a\ecoo.edat to %WINDIR%\temp\asw.5bdcbe240e728b86\cookie.bin
  • from %WINDIR%\temp\asw.5bdcbe240e728b86\config.def.new to %WINDIR%\temp\asw.5bdcbe240e728b86\config.def
  • from %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log.tmp.cffc7e78-7956-4bfd-93b9-7576e1a8b49d to %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log
  • from %WINDIR%\temp\asw.5bdcbe240e728b86\stats.ini.tmp to %WINDIR%\temp\asw.5bdcbe240e728b86\stats.ini
  • from %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\asw8add144a80b29c32.tmp to %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\avbugreport.exe
  • from %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\asw3cfbab56b74f2f74.tmp to %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\avdump.exe
  • from %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\aswce4ef099d25bec56.tmp to %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\instup.exe
  • from %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\aswc759114cc6ec67df.tmp to %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\instup.dll
  • from %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\aswcc2d756d3de32d6f.tmp to %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\aswoffertool.exe
  • from %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\aswe71a2f89e77dedfc.tmp to %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\sbr.exe
  • from %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\asw90d026fc740b23cd.tmp to %WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\htmlayout.dll
Substitutes the following files
  • %WINDIR%\temp\asw.5bdcbe240e728b86\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://n2######.iavs9x.u.avast.com/iavs9x/servers.def.vpx
  • http://s1######.iavs9x.u.avast.com/iavs9x/prod-pgm.vpx
  • http://s1######.iavs9x.u.avast.com/iavs9x/avbugreport_x64_ais-97d.vpx
  • http://s1######.iavs9x.u.avast.com/iavs9x/avdump_x64_ais-97d.vpx
  • http://s1######.iavs9x.u.avast.com/iavs9x/avdump_x86_ais-97d.vpx
  • http://s1######.iavs9x.u.avast.com/iavs9x/offertool_x64_ais-97d.vpx
  • http://s1######.iavs9x.u.avast.com/iavs9x/sbr_x64_ais-97d.vpx
  • http://c3######.iavs9x.u.avast.com/iavs9x/prod-pgm.vpx
  • http://l2######.vps18tiny.u.avcdn.net/vps18tiny/prod-vps.vpx
  • http://l2######.vps18tiny.u.avcdn.net/vps18tiny/part-jrog2-12.vpx
  • http://l2######.vps18tiny.u.avcdn.net/vps18tiny/part-vps_windows-20093005.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 z4######.vps18tiny.u.avcdn.net
    • DNS ASK 3.###l.ntp.org
    • DNS ASK n8######.vps18tiny.u.avcdn.net
    • DNS ASK r0######.vps18tiny.u.avcdn.net
    • DNS ASK s-#####tiny.avcdn.net
    • DNS ASK al#####qs.ff.avast.com
    • DNS ASK al########nse-dealer.ff.avast.com
    • DNS ASK l2######.vps18tiny.u.avcdn.net
    • DNS ASK 0.###l.ntp.org
    • DNS ASK 1.###l.ntp.org
    • DNS ASK ss#.####le-analytics.com
    • DNS ASK c3######.vps18tiny.u.avcdn.net
    • DNS ASK 2.###l.ntp.org
    • DNS ASK l2######.iavs9x.u.avast.com
    • DNS ASK r4######.iavs9x.u.avast.com
    • DNS ASK c3######.iavs9x.u.avast.com
    • DNS ASK b7######.iavs9x.u.avast.com
    • DNS ASK s1######.iavs9x.u.avast.com
    • DNS ASK ia####.u.avast.com
    • DNS ASK r6######.iavs9x.u.avast.com
    • DNS ASK s-####9x.avcdn.net
    • DNS ASK n2######.iavs9x.u.avast.com
    • DNS ASK p9######.iavs9x.u.avast.com
    • DNS ASK sh#####d.ff.avast.com
    • DNS ASK v7#####.stats.avast.com
    • DNS ASK l7######.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.1196c27b24ce3a1a\avast_free_antivirus_setup_online_x64.exe' /cookie:mmm_for_dlp_000_119_a /ga_clientid:a2e404d4-2b28-4ecb-b99a-e4dc28df3c2c /edat_dir:%WINDIR%\Temp\asw.1196c27b24ce3a1a
    • '%WINDIR%\temp\asw.5bdcbe240e728b86\instup.exe' /sfx:lite /sfxstorage:%WINDIR%\Temp\asw.5bdcbe240e728b86 /edition:1 /prod:ais /guid:59f36329-4257-411c-ba17-51627a51ba0c /ga_clientid:a2e404d4-2b28-4ecb-b99a-e4dc28df3c2c /cookie:mmm_for_dlp_00...
    • '%WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\instup.exe' /sfx /sfxstorage:%WINDIR%\Temp\asw.5bdcbe240e728b86 /edition:1 /prod:ais /guid:59f36329-4257-411c-ba17-51627a51ba0c /ga_clientid:a2e404d4-2b28-4ecb-b99a-e4dc28df3c2c /cookie:mmm_for_dlp_000_119...
    • '%WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\aswoffertool.exe' -checkChrome -elevated
    • '%WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\aswoffertool.exe' -checkChromeReactivation -elevated -bc=AVFA
    • 'C:\users\public\documents\aswoffertool.exe' -checkChromeReactivation -bc=AVFA
    • '%WINDIR%\temp\asw.5bdcbe240e728b86\new_1408097d\aswoffertool.exe' -checkGToolbar -elevated

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      • 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);
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