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ニュース

Trojan.DownLoader35.2481

Added to the Dr.Web virus database: 2020-10-18

Virus description added:

Technical Information

Modifies file system
Creates the following files
  • %WINDIR%\temp\asw.c6517a26ec9b494c\ecoo.edat
  • %WINDIR%\temp\asw.a9540440dd829bff\setup.def
  • %WINDIR%\temp\asw.a9540440dd829bff\stats.ini.tmp
  • %WINDIR%\temp\asw.a9540440dd829bff\avbugreport_x64_ais-980.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\avdump_x64_ais-980.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\avdump_x86_ais-980.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\offertool_x64_ais-980.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\sbr_x64_ais-980.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\asw3a29a60ad0a7dac8.tmp
  • %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\asw314f1b73b8d8bc31.tmp
  • %WINDIR%\temp\asw.a9540440dd829bff\servers.def.lkg
  • %WINDIR%\temp\asw.a9540440dd829bff\uat_2212.dll
  • %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\aswb329d92d190ed321.tmp
  • %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\asw7de59ca5a99c70cf.tmp
  • %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\aswd0905b7177c2fc8b.tmp
  • %WINDIR%\temp\asw.a9540440dd829bff\uat_2204.dll
  • %WINDIR%\temp\asw.a9540440dd829bff\program.def
  • %WINDIR%\temp\asw.a9540440dd829bff\part-jrog2-23.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\part-vps_windows-20101605.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\vps.def
  • %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\gcapi_16030798272640.dll
  • %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\gcapi_16030798272936.dll
  • %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\asweed6d9347629a314.tmp
  • %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\asw30813f3fa6c693d1.tmp
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log.tmp.4cbbe4bd-d1c2-4ef2-b5a1-78c80343788c
  • %WINDIR%\temp\asw.a9540440dd829bff\config.ini
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log.tmp.3bad66ec-6c10-421b-b651-f3ef53754767
  • %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log
  • %WINDIR%\temp\asw.a9540440dd829bff\servers.def
  • %WINDIR%\temp\asw.a9540440dd829bff\config.def
  • %WINDIR%\temp\asw.a9540440dd829bff\config.def.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\instup.exe
  • %WINDIR%\temp\asw.a9540440dd829bff\instcont_x64_ais-980.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\instup.dll
  • %WINDIR%\temp\asw.a9540440dd829bff\instup_x64_ais-980.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\part-jrog2-6e9.vpx
  • %WINDIR%\temp\asw.c6517a26ec9b494c\avast_free_antivirus_setup_online_x64.exe
  • %WINDIR%\temp\asw.a9540440dd829bff\part-prg_ais-14080980.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\part-vps_windows-20100602.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\prod-pgm.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\prod-vps.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\servers.def.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\htmlayout.dll
  • %WINDIR%\temp\asw.a9540440dd829bff\setgui_x64_ais-980.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\uat.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\uat64.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\uata64.vpx
  • %WINDIR%\temp\asw.a9540440dd829bff\config.def.new
  • %WINDIR%\temp\asw.a9540440dd829bff\part-setup_ais-14080980.vpx
  • C:\users\public\documents\aswoffertool.exe
  • C:\users\public\documents\gcapi_16030798282124.dll
Deletes the following files
  • %WINDIR%\temp\asw.a9540440dd829bff\uat_2212.dll
  • %WINDIR%\temp\asw.a9540440dd829bff\uat_2204.dll
  • %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\gcapi_16030798272640.dll
  • C:\users\public\documents\gcapi_16030798282124.dll
  • C:\users\public\documents\aswoffertool.exe
  • %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\gcapi_16030798272936.dll
Moves the following files
  • from %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log.tmp.3bad66ec-6c10-421b-b651-f3ef53754767 to %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\setup.log
  • from %WINDIR%\temp\asw.c6517a26ec9b494c\ecoo.edat to %WINDIR%\temp\asw.a9540440dd829bff\cookie.bin
  • from %WINDIR%\temp\asw.a9540440dd829bff\config.def.new to %WINDIR%\temp\asw.a9540440dd829bff\config.def
  • from %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log.tmp.4cbbe4bd-d1c2-4ef2-b5a1-78c80343788c to %ALLUSERSPROFILE%\avast software\persistent data\avast\logs\event_manager.log
  • from %WINDIR%\temp\asw.a9540440dd829bff\stats.ini.tmp to %WINDIR%\temp\asw.a9540440dd829bff\stats.ini
  • from %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\asw3a29a60ad0a7dac8.tmp to %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\avbugreport.exe
  • from %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\asw314f1b73b8d8bc31.tmp to %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\avdump.exe
  • from %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\aswb329d92d190ed321.tmp to %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\instup.exe
  • from %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\asweed6d9347629a314.tmp to %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\instup.dll
  • from %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\asw30813f3fa6c693d1.tmp to %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\aswoffertool.exe
  • from %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\asw7de59ca5a99c70cf.tmp to %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\sbr.exe
  • from %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\aswd0905b7177c2fc8b.tmp to %WINDIR%\temp\asw.a9540440dd829bff\new_14080980\htmlayout.dll
Substitutes the following files
  • %WINDIR%\temp\asw.a9540440dd829bff\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://r4######.iavs9x.u.avast.com/iavs9x/servers.def.vpx
  • http://l2######.iavs9x.u.avast.com/iavs9x/prod-pgm.vpx
  • http://l2######.iavs9x.u.avast.com/iavs9x/avbugreport_x64_ais-980.vpx
  • http://l2######.iavs9x.u.avast.com/iavs9x/avdump_x64_ais-980.vpx
  • http://l2######.iavs9x.u.avast.com/iavs9x/avdump_x86_ais-980.vpx
  • http://l2######.iavs9x.u.avast.com/iavs9x/offertool_x64_ais-980.vpx
  • http://l2######.iavs9x.u.avast.com/iavs9x/sbr_x64_ais-980.vpx
  • http://r4######.iavs9x.u.avast.com/iavs9x/prod-pgm.vpx
  • http://n2######.vps18tiny.u.avcdn.net/vps18tiny/prod-vps.vpx
  • http://n2######.vps18tiny.u.avcdn.net/vps18tiny/part-jrog2-23.vpx
  • http://n2######.vps18tiny.u.avcdn.net/vps18tiny/part-vps_windows-20101605.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 g1######.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 s-#####tiny.avcdn.net
    • DNS ASK r6######.vps18tiny.u.avcdn.net
    • DNS ASK p9######.vps18tiny.u.avcdn.net
    • DNS ASK n2######.vps18tiny.u.avcdn.net
    • DNS ASK h4######.vps18tiny.u.avcdn.net
    • DNS ASK 3.###l.ntp.org
    • DNS ASK s1######.iavs9x.u.avast.com
    • DNS ASK b7######.iavs9x.u.avast.com
    • DNS ASK s-####9x.avcdn.net
    • DNS ASK r6######.iavs9x.u.avast.com
    • DNS ASK r4######.iavs9x.u.avast.com
    • DNS ASK l2######.iavs9x.u.avast.com
    • DNS ASK h4######.iavs9x.u.avast.com
    • DNS ASK b8######.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 n4######.iavs9x.u.avast.com
    • DNS ASK ss#.####le-analytics.com
    • DNS ASK l4######.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.c6517a26ec9b494c\avast_free_antivirus_setup_online_x64.exe' /cookie:mmm_ava_999_999_a4j_m /ga_clientid:b315ba5a-8796-4009-9ee9-5a2bd3915ae7 /edat_dir:%WINDIR%\Temp\asw.c6517a26ec9b494c
    • '%WINDIR%\temp\asw.a9540440dd829bff\instup.exe' /sfx:lite /sfxstorage:%WINDIR%\Temp\asw.a9540440dd829bff /edition:1 /prod:ais /guid:058ed68c-4fb1-429c-8c15-60b1fb9e3279 /ga_clientid:b315ba5a-8796-4009-9ee9-5a2bd3915ae7 /cookie:mmm_ava_999_99...
    • '%WINDIR%\temp\asw.a9540440dd829bff\new_14080980\instup.exe' /sfx /sfxstorage:%WINDIR%\Temp\asw.a9540440dd829bff /edition:1 /prod:ais /guid:058ed68c-4fb1-429c-8c15-60b1fb9e3279 /ga_clientid:b315ba5a-8796-4009-9ee9-5a2bd3915ae7 /cookie:mmm_ava_999_999_a4j...
    • '%WINDIR%\temp\asw.a9540440dd829bff\new_14080980\aswoffertool.exe' -checkChrome -elevated
    • '%WINDIR%\temp\asw.a9540440dd829bff\new_14080980\aswoffertool.exe' -checkChromeReactivation -elevated -bc=AVFA
    • 'C:\users\public\documents\aswoffertool.exe' -checkChromeReactivation -bc=AVFA
    • '%WINDIR%\temp\asw.a9540440dd829bff\new_14080980\aswoffertool.exe' -checkGToolbar -elevated

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