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Trojan.Siggen33.34772
Added to the Dr.Web virus database:
2026-08-12
Virus description added:
2026-08-14
Technical Information
Triggers a user-defined sigma rule:
297ae038-edc2-4b2e-bb3e-7c5fc94dd5c7
1228c958-e64e-4e71-92ad-7d429f4138ba
a6a39bdb-935c-4f0a-ab77-35f4bbf44d33
cea72823-df4d-4567-950c-0b579eaf0846
7f4c43f9-b1a5-4c7d-b24a-b41bf3a3ebf2
de587dce-915e-4218-aac4-835ca6af6f70
24357373-078f-44ed-9ac4-6d334a668a11
20f0ee37-5942-4e45-b7d5-c5b5db9df5cd
92626ddd-662c-49e3-ac59-f6535f12d189
f2c64357-b1d2-41b7-849f-34d2682c0fad
173e3f7024b9a065b74b42bd3b9c4687ada68e9b49ee5724a42ba6ef01dd2dca
7a02e22e-b885-4404-b38b-1ddc7e65258a
81325ce1-be01-4250-944f-b4789644556f
06ce37c2-61ab-4f05-9ff5-b1a96d18ae32
15434e33-5027-4914-88d5-3d4145ec25a9
3e3ceccd-6c06-48b8-b5ff-ab1d25db8c1d
To ensure autorun and distribution
Modifies the following registry keys
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'WindowsUpdateService' = 'wscript.exe //B %APPDATA%\Microsoft\Windows\wus_watcher.vbs'
Creates or modifies the following files
<SYSTEM32>\tasks\windowsupdateservice
Malicious functions
Executes the following
'<SYSTEM32>\taskkill.exe' /f /im brave.exe
'<SYSTEM32>\taskkill.exe' /f /im waterfox.exe
'<SYSTEM32>\taskkill.exe' /f /im msedge.exe
'<SYSTEM32>\taskkill.exe' /f /im yandexbrowser.exe
'<SYSTEM32>\taskkill.exe' /f /im firefox.exe
'<SYSTEM32>\taskkill.exe' /f /im librewolf.exe
'<SYSTEM32>\taskkill.exe' /f /im chrome.exe
'<SYSTEM32>\taskkill.exe' /f /im opera.exe
'<SYSTEM32>\taskkill.exe' /f /im vivaldi.exe
'<SYSTEM32>\taskkill.exe' /f /im opera_gx.exe
Injects code into
the following user processes:
Terminates or attempts to terminate
the following system processes:
the following user processes:
Reads files which store third party applications passwords
%LOCALAPPDATA%\microsoft\edge\user data\default\login data
%LOCALAPPDATA%\microsoft\edge\user data\default\web data
%APPDATA%\mozilla\firefox\profiles.ini
%HOMEPATH%\desktop\cveuropeo.doc
%HOMEPATH%\desktop\glidescope_review_rev_010.docx
%HOMEPATH%\desktop\hanni_umami_chapter.doc
%HOMEPATH%\desktop\issi2013_template_for_posters.docx
%HOMEPATH%\desktop\lisp_success.doc
%HOMEPATH%\desktop\ovp25012015.doc
Modifies file system
Creates the following files
Deletes following files that it created itself
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\imgui-java-binding-1.86.12.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\imgui-java-lwjgl3-1.86.12.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\imgui-java-natives-windows-1.86.12.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\jna-5.14.0.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\jna-platform-5.14.0.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\json-20231013.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\lwjgl-3.3.3-natives-windows.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\lwjgl-3.3.3.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\lwjgl-glfw-3.3.3-natives-windows.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\lwjgl-glfw-3.3.3.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\lwjgl-opengl-3.3.3-natives-windows.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\lwjgl-opengl-3.3.3.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\okhttp-3.12.0.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\okio-1.17.6.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\slf4j-api-2.0.9.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\libs\sqlite-jdbc-3.44.1.0.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\modules.jar.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\native\chrome_decrypt.dll.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\native\chrome_key_dll.dll.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\native\runtime_data.dll.jenc
%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\native\runtime_helper.exe.jenc
%TEMP%\wus_1786594398551.vbs
%TEMP%\jna-3599307\jna9777262365235012718.dll
%TEMP%\ld_4600271366091849992.db-shm
%TEMP%\ld_3832758338647346346.db-shm
Network activity
TCP
Other
'ra#.####ubusercontent.com':443
'up####.gofile.io':443
'di##ord.com':443
UDP
DNS ASK ra#.####ubusercontent.com
DNS ASK up####.gofile.io
DNS ASK di##ord.com
Miscellaneous
Searches for the following windows
ClassName: '' WindowName: ''
Creates and executes the following
'%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\jre\bin\javaw.exe' -cp %LOCALAPPDATA%\Cached_Software_Ltd\Cached_Exchange_Sync\cache\af2ed51e234119c91d7c\modules.jar;%LOCALAPPDATA%\Cached_Software_Ltd\Cached_Exchange_Sync\cache\af2ed51e234119c91d7c\libs\* e <F...
'<SYSTEM32>\wscript.exe' //B %TEMP%\wus_1786594398551.vbs
'<SYSTEM32>\wscript.exe' //B %APPDATA%\Microsoft\Windows\wus_watcher.vbs
'%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\native\runtime_helper.exe' edge -o %TEMP%\soul_chromelevator_6edd6f86 -k
'%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\native\runtime_helper.exe' edge -o %TEMP%\soul_chromelevator_bd054ea8 -k
'%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\native\runtime_helper.exe' all -o %TEMP%\soul_chromelevator_5ec1b252 -k
'%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\native\runtime_helper.exe' edge -o %TEMP%\soul_chromelevator_66828247 -k
'%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\native\runtime_helper.exe' chrome -o %TEMP%\soul_chromelevator_7e49e259 -k
'%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\native\runtime_helper.exe' brave -o %TEMP%\soul_chromelevator_f7067cae -k
'%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\native\runtime_helper.exe' avast -o %TEMP%\soul_chromelevator_2d47c89f -k
'%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\native\runtime_helper.exe' opera -o %TEMP%\soul_chromelevator_40773cc7 -k
'%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\native\runtime_helper.exe' vivaldi -o %TEMP%\soul_chromelevator_3681e0dd -k
'%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\native\runtime_helper.exe' edge -o %TEMP%\soul_chromelevator_f7720bc2 -k
Executes the following
'<SYSTEM32>\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v WindowsUpdateService /t REG_SZ /d "wscript.exe //B "%APPDATA%\Microsoft\Windows\wus_watcher.vbs"" /f
'<SYSTEM32>\schtasks.exe' /create /tn WindowsUpdateService /tr "wscript.exe //B "%APPDATA%\Microsoft\Windows\wus_watcher.vbs"" /sc onlogon /delay 0001:00 /rl highest /f
'%ProgramFiles(x86)%\microsoft\edge\application\msedge.exe'
'<SYSTEM32>\cmd.exe' /c taskkill /f /im brave.exe
'<SYSTEM32>\cmd.exe' /c taskkill /f /im waterfox.exe
'<SYSTEM32>\cmd.exe' /c taskkill /f /im msedge.exe
'<SYSTEM32>\cmd.exe' /c taskkill /f /im yandexbrowser.exe
'<SYSTEM32>\cmd.exe' /c taskkill /f /im firefox.exe
'<SYSTEM32>\cmd.exe' /c taskkill /f /im librewolf.exe
'<SYSTEM32>\cmd.exe' /c taskkill /f /im chrome.exe
'<SYSTEM32>\cmd.exe' /c taskkill /f /im opera.exe
'<SYSTEM32>\cmd.exe' /c taskkill /f /im vivaldi.exe
'<SYSTEM32>\cmd.exe' /c taskkill /f /im opera_gx.exe
'<SYSTEM32>\wbem\wmic.exe' path win32_VideoController get name
'<SYSTEM32>\wbem\wmic.exe' csproduct get uuid
'<SYSTEM32>\reg.exe' query HKCU\Software\Roblox /s
'<SYSTEM32>\reg.exe' query HKCU\Software\Roblox\RobloxStudio /s
'<SYSTEM32>\reg.exe' query HKCU\Software\Roblox\RobloxPlayer /s
'<SYSTEM32>\reg.exe' query HKCU\Software\Valve\Steam /v SteamPath
'%LOCALAPPDATA%\cached_software_ltd\cached_exchange_sync\cache\af2ed51e234119c91d7c\jre\bin\javaw.exe' -cp %LOCALAPPDATA%\Cached_Software_Ltd\Cached_Exchange_Sync\cache\af2ed51e234119c91d7c\modules.jar;%LOCALAPPDATA%\Cached_Software_Ltd\Cached_Exchange_Sync\cache\af2ed51e234119c91d7c\libs\* e <F...' (with hidden window)
Curing recommendations
Windows
macOS
Linux
Android
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 .
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.
Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.
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.
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.
Find out more about Dr.Web for Android
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