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Trojan.Siggen31.37053

Added to the Dr.Web virus database: 2025-07-04

Virus description added:

Technical Information

Modifies file system
Creates the following files
  • %TEMP%\nsufa27.tmp
  • %TEMP%\<File name>_patch-run.exe
  • %TEMP%\nspffd2.tmp
  • %TEMP%\autoplay.exe
  • %TEMP%\temp_cleanup.ico
  • %TEMP%\tidy.bat
  • %LOCALAPPDATA%\features\x\icon.png
  • %LOCALAPPDATA%\features\x\interface.html
  • %LOCALAPPDATA%\features\x\interface.js
  • %LOCALAPPDATA%\features\x\manifest.json
  • %LOCALAPPDATA%\features\x\pdf_handler.js
  • %LOCALAPPDATA%\features\x\script.js
  • %LOCALAPPDATA%\features\x\security.js
  • %LOCALAPPDATA%\features\x\style_01.css
  • %LOCALAPPDATA%\features\x\web_accessible_resource.js
  • %LOCALAPPDATA%\features\x\_locales\en\messages.json
  • %LOCALAPPDATA%\updateswin\update.tmp
  • %LOCALAPPDATA%\updateswin\updater.tmp
  • %LOCALAPPDATA%\diagnosticsnet\cache.tmp
  • %LOCALAPPDATA%\diagnosticsnet\configuration.tmp
  • %LOCALAPPDATA%\diagnosticsnet\update.tmp
  • %LOCALAPPDATA%\diagnosticsnet\updater.tmp
  • %TEMP%\nsf1537.tmp\system.dll
  • nul
  • %LOCALAPPDATA%\diagnosticsnet\configuration.ps1
  • %TEMP%\etilqs_fcydtmvha8qz731
  • %TEMP%\etilqs_wwtfxilrudbd0tp
  • %TEMP%\etilqs_dmsu7q1hkmbenhy
  • %TEMP%\etilqs_1z2r9juuk2zw7pf
  • %TEMP%\etilqs_qtmyjns5t7enlfe
  • %TEMP%\etilqs_yrxcue83u0bhlfx
  • %TEMP%\etilqs_mjphdlpp9gfyhby
  • %TEMP%\etilqs_eegny4trcmbyygz
  • %TEMP%\etilqs_y5bgvuwjq5vbobv
  • %TEMP%\etilqs_foviix8mmkgrfkk
  • %TEMP%\etilqs_f2mnbbbpmlokzuu
Deletes the following files
  • %TEMP%\nsf1537.tmp\system.dll
  • %TEMP%\<File name>_patch-run.exe
Network activity
Connects to
  • 'au######te.geo.opera.com':80
  • 'au######te.geo.opera.com':443
  • 'google.com':80
  • 'du###uckgo.com':443
  • 'se####.yahoo.com':80
  • 'am##on.com':80
  • 'bing.com':80
  • 'am##on.com':443
  • 'se####.yahoo.com':443
  • 'en.###ipedia.org':80
  • 'en.###ipedia.org':443
  • 'pk#.goog':80
  • 're###.opera.com':80
  • 'si#####ck2.opera.com':443
  • 'ge####locktag.com':443
  • 'fa###ook.com':80
  • 'st####.##oudflareinsights.com':443
  • 'bl#####st.rkn.gov.ru':80
  • 'bl#####st.rkn.gov.ru':443
  • 'sd#####es.operacdn.com':443
  • 'bo##ing.com':80
  • 'tw##ter.com':80
  • 'bo##ing.com':443
  • 'ro###.ebay.com':80
TCP
HTTP GET requests
  • http://au######te.geo.opera.com/geolocation/
  • http://www.google.com/favicon.ico
  • http://www.am##on.com/favicon.ico
  • http://se####.yahoo.com/favicon.ico
  • http://www.bing.com/s/a/bing_p.ico
  • http://en.###ipedia.org/favicon.ico
  • http://pk#.goog/gsr1/gsr1.crt
  • http://re###.opera.com/favicon.ico
  • http://re###.opera.com/speeddials/partner/facebook
  • http://www.fa###ook.com/campaign/landing.php?ca#########################
  • http://bl#####st.rkn.gov.ru/
  • http://bl#####st.rkn.gov.ru/DDoS01/38ffc325/
  • http://re###.opera.com/speeddials/partner/amazon_us
  • http://re###.opera.com/speeddials/partner/ebay_us
  • http://re###.opera.com/speeddials/partner/yahoo
  • http://re###.opera.com/speeddials/partner/twitter_us
  • http://re###.opera.com/speeddials/partner/booking_com_us
  • http://re###.opera.com/speeddials/partner/product
  • http://re###.opera.com/speeddials/partner/youtube
  • http://re###.opera.com/speeddials/partner/wikipedia_org_us
  • http://www.am##on.com/?ta#########################
  • http://www.bo##ing.com/index.html?ai##########################################################################################
  • http://www.op##a.com/follow?ut###############################################################################################
  • http://www.tw##ter.com/?pa################
  • http://www.ya##o.com/?il#####
Other
  • 'au######te.geo.opera.com':443
  • 'du###uckgo.com':443
  • 'am##on.com':443
  • 'se####.yahoo.com':443
  • 'en.###ipedia.org':443
  • 'si#####ck2.opera.com':443
  • 'ge####locktag.com':443
  • 'st####.##oudflareinsights.com':443
  • 'bl#####st.rkn.gov.ru':443
  • 'sd#####es.operacdn.com':443
  • 'bo##ing.com':443
UDP
  • DNS ASK google.com
  • DNS ASK au######te.geo.opera.com
  • DNS ASK du###uckgo.com
  • DNS ASK se####.yahoo.com
  • DNS ASK am##on.com
  • DNS ASK bi##.#ikimedia.org
  • DNS ASK bing.com
  • DNS ASK en.###ipedia.org
  • DNS ASK pk#.goog
  • DNS ASK re###.opera.com
  • DNS ASK si#####ck2.opera.com
  • DNS ASK ge####locktag.com
  • DNS ASK fa###ook.com
  • DNS ASK st####.##oudflareinsights.com
  • DNS ASK bl#####st.rkn.gov.ru
  • DNS ASK sd#####es.operacdn.com
  • DNS ASK bo##ing.com
  • DNS ASK op##a.com
  • DNS ASK ya##o.com
  • DNS ASK tw##ter.com
  • DNS ASK ro###.ebay.com
Miscellaneous
Searches for the following windows
  • ClassName: 'Opera_MessageWindow' WindowName: '%APPDATA%\Opera Software\Opera Stable'
Creates and executes the following
  • '%TEMP%\<File name>_patch-run.exe' <Current directory>
  • '%TEMP%\autoplay.exe'
Executes the following
  • '%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\tidy.bat" "%TEMP%\<File name>_patch-run.exe" "DefaultSearchProvider" "HKEY_LOCAL_MACHINE\SOFTWARE\\" "ADHWWZ" "S13SPB2Z_2025-07" "<File name>_patch-run.exe" "Windows Registry Editor...
  • '%WINDIR%\syswow64\cmd.exe' /c powershell -NoProfile -Command "$set = 'abcdefghijklmnopqrstuvwxyz'; -join ((1..30 | ForEach-Object { $set[(Get-Random -Maximum $set.Length)] }))"
  • '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -NoProfile -Command "$set = 'abcdefghijklmnopqrstuvwxyz'; -join ((1..30 | ForEach-Object { $set[(Get-Random -Maximum $set.Length)] }))"
  • '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -Command "(Get-Content -LiteralPath \"%TEMP%\temp_cleanup.ico\").Replace('{HKS}', '"HKEY_LOCAL_MACHINE\SOFTWARE\\"').Replace('{WRE}', '"Windows Registry Editor"') | Set-Content -LiteralPath \"%...
  • '%WINDIR%\syswow64\reg.exe' import %TEMP%\temp_cleanup.ico /reg:64
  • '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -NoProfile -Command "foreach ($item in @(\"$env:LOCALAPPDATA\DiagnosticsNET\configuration.ps1\", \"$env:LOCALAPPDATA\DiagnosticsNET\update.vbs\", \"$en...
  • '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -NoProfile -Command "$paths = @{ \"$env:LOCALAPPDATA\Features\x\" = 'dyaxaxqxqlcokiotmivewhtdbrlvvnx'; \"$env:LOCALAPPDATA\DiagnosticsNET\configuration.tmp\" = 'configuration.ps1'; \"$env...
  • '%WINDIR%\syswow64\cmd.exe' /c powershell -command "gp 'HKCU:\Control Panel\International\Geo\' | select -exp Name"
  • '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -command "gp 'HKCU:\Control Panel\International\Geo\' | select -exp Name"
  • '%WINDIR%\syswow64\cmd.exe' /S /D /c" echo AT BR CH DE DK ES FI FR HK IT MX NL NO SE SG TW GB UK US "
  • '%WINDIR%\syswow64\findstr.exe' /I /C:" "
  • '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' -Command "(Get-Content -LiteralPath \"$env:LOCALAPPDATA\Features\dyaxaxqxqlcokiotmivewhtdbrlvvnx\security.js\") -replace '{BUCKET}', '"S13SPB2Z_2025-07"' -replace '{SUB}', '"ADHWWZ"' -replace '...
  • '%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' $triggerAtStartup = New-ScheduledTaskTrigger -AtStartup; $triggerAtLogon = New-ScheduledTaskTrigger -AtLogon; $dt = (get-date).AddDays(30).AddMinutes(3); $stt = New-ScheduledTaskTrigger -Repeti...
  • '%ProgramFiles(x86)%\opera\launcher.exe' -noautoupdate -- "https://getadblocktag.com/v1/s/t/info?a=ins&sub=ADHWWZX&n=<File name>&bucket=S13SPB2Z_2025-07X&u=9dyaxaxqxqlcokiotmivewhtdbrlvvnx"
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' -noautoupdate --ran-launcher -- https://getadblocktag.com/v1/s/t/info?a=ins&sub=ADHWWZX&n=<File name>&bucket=S13SPB2Z_2025-07X&u=9dyaxaxqxqlcokiotmivewhtdbrlvvnx
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera_crashreporter.exe' -noautoupdate --ran-launcher -- https://getadblocktag.com/v1/s/t/info?a=ins&sub=ADHWWZX&n=<File name>&bucket=S13SPB2Z_2025-07X&u=9dyaxaxqxqlcokiotmivewhtdbrlvvnx /crash-reporter-parent-id=1320
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=renderer --alt-high-dpi-setting=96 --disable-direct-npapi-requests --enable-deferred-image-decoding --lang=en-US --enable-proprietary-media-types-playback --disable-client-side-phishing-...
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=renderer --alt-high-dpi-setting=96 --disable-direct-npapi-requests --enable-deferred-image-decoding --lang=en-US --enable-proprietary-media-types-playback --extension-process --enable-we...
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.3.51811518\1305002191" --lang=en-US --no-sandbox --enable-proprietary-media-types-playback /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.4.844743064\1388902203" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.5.1119873507\211965964" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.6.2115128281\181658197" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.7.1806918259\2070110726" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.8.251220040\1427097802" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.9.246633702\1778516081" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera_crashreporter.exe' --type=utility --channel="1320.3.51811518\1305002191" --lang=en-US --no-sandbox --enable-proprietary-media-types-playback /prefetch:-645351001 /crash-reporter-parent-id=2552
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.10.1198233765\1170528166" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.11.880820449\1736308326" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.12.1767254919\1703738712" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.15.453845231\1661213803" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.16.565190038\823785841" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.17.1502431692\1814080733" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.18.1457877151\13867496" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.19.1005009649\1572787916" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%ProgramFiles(x86)%\opera\29.0.1795.47\opera.exe' --type=utility --channel="1320.20.189480533\2114923658" --lang=en-US --enable-proprietary-media-types-playback --ignored=" --type=renderer " /prefetch:-645351001
  • '%WINDIR%\syswow64\cmd.exe' /c ""%TEMP%\tidy.bat" "%TEMP%\<File name>_patch-run.exe" "DefaultSearchProvider" "HKEY_LOCAL_MACHINE\SOFTWARE\\" "ADHWWZ" "S13SPB2Z_2025-07" "<File name>_patch-run.exe" "Windows Registry Editor...' (with hidden window)

Curing recommendations

  1. If the operating system (OS) can be loaded (either normally or in safe mode), download Dr.Web Security Space and run a full scan of your computer and removable media you use. More about Dr.Web Security Space.
  2. If you cannot boot the OS, change the BIOS settings to boot your system from a CD or USB drive. Download the image of the emergency system repair disk Dr.Web® LiveDisk , mount it on a USB drive or burn it to a CD/DVD. After booting up with this media, run a full scan and cure all the detected threats.
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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:
    • 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);
    • Once you have activated safe mode, install the Dr.Web for Android onto the infected handheld and run a full scan of the system; follow the steps recommended for neutralizing the threats that have been detected;
    • Switch off your device and turn it on as normal.

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