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Trojan.Siggen21.4035

Added to the Dr.Web virus database: 2023-07-04

Virus description added:

Technical Information

Modifies file system
Creates the following files
  • %ALLUSERSPROFILE%\avg\persistent data\antivirus\logs\setup.log.tmp.ba428fdb-5338-42b1-9d6e-a273a546bb79
  • %WINDIR%\temp\asw.506813344ed864c8\stats.ini.tmp
  • %WINDIR%\temp\asw.506813344ed864c8\avbugreport_x64_ais-c62.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\avdump_x64_ais-c62.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\avdump_x86_ais-c62.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\instcont_x64_ais-c62.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\instup_x64_ais-c62.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\offertool_x64_ais-c62.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\sbr_x64_ais-c62.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\setgui_x64_ais-c62.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\aswa6c9c8921f757ad7.tmp
  • %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\aswf2eb1df7e5097d50.tmp
  • %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\asw42edf9a588804e38.tmp
  • C:\users\public\documents\aswoffertool.exe
  • %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\asw1ff0f4eeec598ec4.tmp
  • %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\asw3d8b546ab3bbefaf.tmp
  • %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\asw385f567c57d5fafe.tmp
  • %WINDIR%\temp\asw.506813344ed864c8\uat_676.dll
  • %WINDIR%\temp\asw.506813344ed864c8\part-prg_ais-15020c62.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\program.def
  • %WINDIR%\temp\asw.506813344ed864c8\part-jrog2-ff6.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\part-vps_windows-23070304.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\vps.def
  • %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\gcapi_16884183382052.dll
  • %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\gcapi_16884183393988.dll
  • %WINDIR%\temp\asw.506813344ed864c8\setup.def
  • %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\aswbc2286b0681b28c6.tmp
  • %WINDIR%\temp\asw.506813344ed864c8\part-setup_ais-15020c62.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\uata64.vpx
  • %ALLUSERSPROFILE%\avg\persistent data\antivirus\logs\setup.log
  • %WINDIR%\temp\asw.506813344ed864c8\servers.def
  • %WINDIR%\temp\asw.506813344ed864c8\servers.def.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\part-prg_ais-15040c6b.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\prod-pgm.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\part-setup_ais-15040c6b.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\part-jrog2-7e3.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\part-vps_windows-21052000.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\prod-vps.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\uat.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\uat64.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\config.def
  • %WINDIR%\temp\asw.506813344ed864c8\servers.def.lkg
  • %WINDIR%\temp\asw.506813344ed864c8\config.def.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\instup.exe
  • %WINDIR%\temp\asw.506813344ed864c8\instcont_x64_ais-c6b.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\htmlayout.dll
  • %WINDIR%\temp\asw.506813344ed864c8\setgui_x64_ais-c6b.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\instup.dll
  • %WINDIR%\temp\asw.506813344ed864c8\instup_x64_ais-c6b.vpx
  • %WINDIR%\temp\asw.506813344ed864c8\config.def.new
  • %WINDIR%\temp\asw.506813344ed864c8\config.ini
  • %ALLUSERSPROFILE%\avg\persistent data\antivirus\logs\event_manager.log.tmp.7c49d4e4-37c8-4bbb-a27b-bf5a006055eb
  • %ALLUSERSPROFILE%\avg\persistent data\antivirus\logs\event_manager.log
  • %WINDIR%\temp\asw.506813344ed864c8\uat_1304.dll
  • C:\users\public\documents\gcapi_1688418340416.dll
Deletes the following files
  • %WINDIR%\temp\asw.506813344ed864c8\uat_1304.dll
  • %WINDIR%\temp\asw.506813344ed864c8\uat_676.dll
  • %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\gcapi_16884183382052.dll
  • C:\users\public\documents\gcapi_1688418340416.dll
  • C:\users\public\documents\aswoffertool.exe
  • %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\gcapi_16884183393988.dll
Moves the following files
  • from %ALLUSERSPROFILE%\avg\persistent data\antivirus\logs\setup.log.tmp.ba428fdb-5338-42b1-9d6e-a273a546bb79 to %ALLUSERSPROFILE%\avg\persistent data\antivirus\logs\setup.log
  • from %WINDIR%\temp\asw.506813344ed864c8\config.def.new to %WINDIR%\temp\asw.506813344ed864c8\config.def
  • from %ALLUSERSPROFILE%\avg\persistent data\antivirus\logs\event_manager.log.tmp.7c49d4e4-37c8-4bbb-a27b-bf5a006055eb to %ALLUSERSPROFILE%\avg\persistent data\antivirus\logs\event_manager.log
  • from %WINDIR%\temp\asw.506813344ed864c8\stats.ini.tmp to %WINDIR%\temp\asw.506813344ed864c8\stats.ini
  • from %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\aswa6c9c8921f757ad7.tmp to %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\avbugreport.exe
  • from %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\aswf2eb1df7e5097d50.tmp to %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\avdump.exe
  • from %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\aswbc2286b0681b28c6.tmp to %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\instup.exe
  • from %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\asw42edf9a588804e38.tmp to %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\instup.dll
  • from %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\asw1ff0f4eeec598ec4.tmp to %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\aswoffertool.exe
  • from %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\asw3d8b546ab3bbefaf.tmp to %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\sbr.exe
  • from %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\asw385f567c57d5fafe.tmp to %WINDIR%\temp\asw.506813344ed864c8\new_15020c62\htmlayout.dll
Substitutes the following files
  • %WINDIR%\temp\asw.506813344ed864c8\config.def.new
Network activity
Connects to
  • 'go#####a###ytics.com':80
  • 'v7#####.stats.avcdn.net':443
  • 'pk#.goog':80
  • 'sh####rd.avcdn.net':443
  • 'y7######.iavs9x.avg.u.avcdn.net':80
  • 'z3######.iabsra.avg.u.avcdn.net':80
  • 'z3######.avi18.u.avcdn.net':80
  • 'al########nse-dealer.ff.avast.com':443
  • 'ss#.####le-a###ytics.com':443
  • 'an#####cs.ff.avast.com':443
TCP
HTTP GET requests
  • http://www.go#####a###ytics.com/collect?an####################################################################################################################################################
  • http://f4######.avi18.u.avcdn.net/avi18/prod-vps.vpx
  • http://h2######.iabsra.avg.u.avcdn.net/avg/iabsra/part-prg_ais-15020c62.vpx
  • http://h2######.iabsra.avg.u.avcdn.net/avg/iabsra/uat64.vpx
  • http://h2######.iabsra.avg.u.avcdn.net/avg/iabsra/prod-pgm.vpx
  • http://l6######.iavs9x.avg.u.avcdn.net/avg/business/setgui_x64_ais-c62.vpx
  • http://l6######.iavs9x.avg.u.avcdn.net/avg/business/sbr_x64_ais-c62.vpx
  • http://l6######.iavs9x.avg.u.avcdn.net/avg/business/offertool_x64_ais-c62.vpx
  • http://l6######.iavs9x.avg.u.avcdn.net/avg/business/instup_x64_ais-c62.vpx
  • http://l6######.iavs9x.avg.u.avcdn.net/avg/business/instcont_x64_ais-c62.vpx
  • http://l6######.iavs9x.avg.u.avcdn.net/avg/business/avdump_x86_ais-c62.vpx
  • http://l6######.iavs9x.avg.u.avcdn.net/avg/business/avdump_x64_ais-c62.vpx
  • http://l6######.iavs9x.avg.u.avcdn.net/avg/business/avbugreport_x64_ais-c62.vpx
  • http://l6######.iavs9x.avg.u.avcdn.net/avg/business/part-setup_ais-15020c62.vpx
  • http://l6######.iavs9x.avg.u.avcdn.net/avg/business/uat64.vpx
  • http://l6######.iavs9x.avg.u.avcdn.net/avg/business/prod-pgm.vpx
  • http://n3######.iavs9x.avg.u.avcdn.net/avg/business/servers.def.vpx
  • http://pk#.goog/gsr1/gsr1.crt
  • http://f4######.avi18.u.avcdn.net/avi18/part-jrog2-ff6.vpx
  • http://f4######.avi18.u.avcdn.net/avi18/part-vps_windows-23070304.vpx
Other
  • 'v7#####.stats.avcdn.net':443
  • 'sh####rd.avcdn.net':443
  • 'al########nse-dealer.ff.avast.com':443
  • 'ss#.####le-a###ytics.com':443
UDP
  • DNS ASK go#####a###ytics.com
  • DNS ASK al########nse-dealer.ff.avast.com
  • DNS ASK z3######.avi18.u.avcdn.net
  • DNS ASK x8######.avi18.u.avcdn.net
  • DNS ASK s8######.avi18.u.avcdn.net
  • DNS ASK s-####8.avcdn.net
  • DNS ASK l9######.avi18.u.avcdn.net
  • DNS ASK f4######.avi18.u.avcdn.net
  • DNS ASK z3######.iabsra.avg.u.avcdn.net
  • DNS ASK s-####9x.avcdn.net
  • DNS ASK m6######.iabsra.avg.u.avcdn.net
  • DNS ASK k9######.iabsra.avg.u.avcdn.net
  • DNS ASK h2######.iabsra.avg.u.avcdn.net
  • DNS ASK b0######.iabsra.avg.u.avcdn.net
  • DNS ASK y7######.iavs9x.avg.u.avcdn.net
  • DNS ASK s1######.iavs9x.avg.u.avcdn.net
  • DNS ASK n3######.iavs9x.avg.u.avcdn.net
  • DNS ASK l6######.iavs9x.avg.u.avcdn.net
  • DNS ASK g5######.iavs9x.avg.u.avcdn.net
  • DNS ASK sh####rd.avcdn.net
  • DNS ASK pk#.goog
  • DNS ASK v7#####.stats.avcdn.net
  • DNS ASK ss#.####le-a###ytics.com
  • DNS ASK an#####cs.ff.avast.com
Miscellaneous
Creates and executes the following
  • '%WINDIR%\temp\asw.506813344ed864c8\instup.exe' /sfx:lite /sfxstorage:%WINDIR%\Temp\asw.506813344ed864c8 /edition:17 /prod:ais /no_delayed_installation /guid:5e94336f-5651-418e-84b2-a250a57e8121 /ga_clientid:6380787f-51cc-44f0-a1ad-cec8825d3...
  • '%WINDIR%\temp\asw.506813344ed864c8\new_15020c62\instup.exe' /sfx /sfxstorage:%WINDIR%\Temp\asw.506813344ed864c8 /edition:17 /prod:ais /no_delayed_installation /guid:5e94336f-5651-418e-84b2-a250a57e8121 /ga_clientid:6380787f-51cc-44f0-a1ad-cec8825d3444 /...
  • '%WINDIR%\temp\asw.506813344ed864c8\new_15020c62\aswoffertool.exe' -checkChrome -elevated
  • '%WINDIR%\temp\asw.506813344ed864c8\new_15020c62\aswoffertool.exe' -checkChromeReactivation -elevated -bc=AWFA
  • 'C:\users\public\documents\aswoffertool.exe' -checkChromeReactivation -bc=AWFA

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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.
  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:
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