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Trojan.Siggen10.40132

Added to the Dr.Web virus database: 2020-10-21

Virus description added:

Technical Information

Malicious functions
Executes the following
  • '%WINDIR%\syswow64\taskkill.exe' /f /im chrome.exe
  • '%WINDIR%\syswow64\taskkill.exe' /f /im opera.exe
Injects code into
the following system processes:
  • <SYSTEM32>\svchost.exe
the following user processes:
  • firefox.exe
Reads files which store third party applications passwords
  • %LOCALAPPDATA%\google\chrome\user data\default\login data
  • %LOCALAPPDATA%\google\chrome\user data\default\cookies
  • %APPDATA%\mozilla\firefox\profiles.ini
  • %APPDATA%\opera software\opera stable\login data
  • %LOCALAPPDATA%\google\chrome\user data\default\web data
Modifies file system
Creates the following files
  • %TEMP%\24b5792949671ead.exe
  • %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\3ccd5499-87a8-4b10-a215-608888dd3b55.vsch
  • %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\2f1a6504-0641-44cf-8bb5-3612d865f2e5.vsch
  • %LOCALAPPDATA%\microsoft\vault\4bf4c442-9b8a-41a0-b380-dd4a704ddb28\policy.vpol
  • %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\extensions\{e4a8a97b-f2ed-450b-b12d-ee082ba24781}.xpi
  • %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\storage\default\moz-extension+++fe0ddd3d-a6f9-4fcf-9fa1-04ee736f082a\.metadata-v2
  • %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\storage\default\moz-extension+++c9cdd9b2-a8a6-4f4c-8167-86f19e1820e6^usercontextid=4294967295\.metadata-v2
  • %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\storage\default\moz-extension+++d1f351cc-31ff-421b-b87d-57d5cb71c1f8^usercontextid=4294967295\.metadata-v2
  • %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\storage\default\moz-extension+++68c56b1f-25b6-4a97-b66d-eb454bcdbf0f^usercontextid=4294967295\.metadata-v2
  • %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\storage\default\moz-extension+++fe0ddd3d-a6f9-4fcf-9fa1-04ee736f082a^usercontextid=4294967295\.metadata-v2
  • %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\storage\default\moz-extension+++d1f351cc-31ff-421b-b87d-57d5cb71c1f8^usercontextid=4294967295\idb\3647222921wleabceoxlt-eengsairo.sqlite
  • %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\storage\default\moz-extension+++fe0ddd3d-a6f9-4fcf-9fa1-04ee736f082a^usercontextid=4294967295\idb\3647222921wleabceoxlt-eengsairo.sqlite
  • %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\storage\default\moz-extension+++c9cdd9b2-a8a6-4f4c-8167-86f19e1820e6^usercontextid=4294967295\idb\3647222921wleabceoxlt-eengsairo.sqlite
  • %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\storage\default\moz-extension+++fe0ddd3d-a6f9-4fcf-9fa1-04ee736f082a\idb\61413404gyreekansoem.sqlite
  • %LOCALAPPDATA%\login data1603251633498
  • %LOCALAPPDATA%\login data1603251627757
  • %LOCALAPPDATA%\cookies1603251627757
  • %LOCALAPPDATA%\web data1603251627773
  • %LOCALAPPDATA%webdata1603251627789
  • %LOCALAPPDATA%\login data1603251632125
  • %LOCALAPPDATA%\cookies1603251632141
  • %LOCALAPPDATA%\web data1603251632141
  • %LOCALAPPDATA%webdata1603251632157
  • %LOCALAPPDATA%\login data1603251633436
  • %LOCALAPPDATA%\cookies1603251633436
  • %LOCALAPPDATA%\cookies.sqlite1603251633467
  • %LOCALAPPDATA%\cookies.sqlite1603251633467-shm
  • %ALLUSERSPROFILE%\microsoft\vault\ac658cb4-9126-49bd-b877-31eedab3f204\policy.vpol
  • %APPDATA%\mozilla\firefox\profiles\gn7ryp3k.default\storage\default\moz-extension+++68c56b1f-25b6-4a97-b66d-eb454bcdbf0f^usercontextid=4294967295\idb\3647222921wleabceoxlt-eengsairo.sqlite
  • %LOCALAPPDATA%\cookies1603251620285
  • %LOCALAPPDATA%\google\chrome\user data\default\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\jquery-1.8.3.min.js
  • %TEMP%\gdiview.msi
  • %TEMP%\msi9f89.tmp
  • %TEMP%\1603251619162
  • %LOCALAPPDATA%\login data1603251619567
  • %LOCALAPPDATA%\cookies1603251619583
  • %LOCALAPPDATA%\crx.7z
  • %LOCALAPPDATA%\crx.json
  • %LOCALAPPDATA%\google\chrome\user data\default\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\icon.png
  • %LOCALAPPDATA%\google\chrome\user data\default\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\icon48.png
  • %LOCALAPPDATA%\google\chrome\user data\default\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\popup.html
  • %LOCALAPPDATA%\google\chrome\user data\default\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\background.js
  • %LOCALAPPDATA%\google\chrome\user data\default\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\book.js
  • %LOCALAPPDATA%\google\chrome\user data\default\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\popup.js
  • %LOCALAPPDATA%\cookies.sqlite1603251620223-shm
  • %LOCALAPPDATA%\google\chrome\user data\default\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\manifest.json
  • %TEMP%\1603251620051
  • %APPDATA%\opera software\opera stable\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\icon.png
  • %APPDATA%\opera software\opera stable\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\icon48.png
  • %APPDATA%\opera software\opera stable\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\popup.html
  • %APPDATA%\opera software\opera stable\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\background.js
  • %APPDATA%\opera software\opera stable\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\book.js
  • %APPDATA%\opera software\opera stable\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\jquery-1.8.3.min.js
  • %APPDATA%\opera software\opera stable\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\popup.js
  • %APPDATA%\opera software\opera stable\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\manifest.json
  • %TEMP%\1603251620098
  • %LOCALAPPDATA%\cookies.sqlite1603251620223
  • %LOCALAPPDATA%\login data1603251620269
  • %LOCALAPPDATA%\cookies1603251633498
Deletes the following files
  • %TEMP%\msi9f89.tmp
  • %LOCALAPPDATA%\cookies.sqlite1603251633467
  • %LOCALAPPDATA%\cookies.sqlite1603251633467-shm
  • %LOCALAPPDATA%\cookies1603251633436
  • %LOCALAPPDATA%\login data1603251633436
  • %LOCALAPPDATA%webdata1603251632157
  • %LOCALAPPDATA%\web data1603251632141
  • %LOCALAPPDATA%\cookies1603251632141
  • %LOCALAPPDATA%\login data1603251632125
  • %TEMP%\24b5792949671ead.exe
  • %LOCALAPPDATA%webdata1603251627789
  • %LOCALAPPDATA%\web data1603251627773
  • %LOCALAPPDATA%\login data1603251633498
  • %LOCALAPPDATA%\cookies1603251627757
  • %TEMP%\1603251620098
  • %LOCALAPPDATA%\cookies1603251620285
  • %LOCALAPPDATA%\login data1603251620269
  • %LOCALAPPDATA%\cookies.sqlite1603251620223
  • %LOCALAPPDATA%\cookies.sqlite1603251620223-shm
  • %TEMP%\1603251620051
  • %TEMP%\1603251619162
  • %LOCALAPPDATA%\crx.7z
  • %LOCALAPPDATA%\crx.json
  • %LOCALAPPDATA%\cookies1603251619583
  • %LOCALAPPDATA%\login data1603251619567
  • %LOCALAPPDATA%\login data1603251627757
  • %LOCALAPPDATA%\cookies1603251633498
Moves the following files
  • from %LOCALAPPDATA%\google\chrome\user data\default\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\book.js to %LOCALAPPDATA%\google\chrome\user data\default\extensions\cmijonkhahhdahlapdgkohgfamohdjah\1.0.0.0_0\d8yi+hf7rx.js
Substitutes the following files
  • %LOCALAPPDATA%\crx.7z
  • %LOCALAPPDATA%\crx.json
Deletes itself.
Network activity
TCP
HTTP GET requests
  • http://71#####222390629.xyz/info/r
  • http://71#####222390629.xyz/info/d
HTTP POST requests
  • http://71#####222390629.xyz/info/e
  • http://71#####222390629.xyz/info/g
  • http://71#####222390629.xyz/info/w
  • '56#####8d76e1c9b.club':443
  • UDP
    • DNS ASK 71#####222390629.xyz
    • DNS ASK 56#####8d76e1c9b.club
    Miscellaneous
    Adds a root certificate
    Searches for the following windows
    • ClassName: '' WindowName: ''
    Creates and executes the following
    • '%TEMP%\24b5792949671ead.exe' 0011 installp1
    • '%TEMP%\24b5792949671ead.exe' 200 installp1
    • '%TEMP%\24b5792949671ead.exe' 0011 installp1' (with hidden window)
    • '%TEMP%\24b5792949671ead.exe' 200 installp1' (with hidden window)
    • '%WINDIR%\syswow64\msiexec.exe' /i "%TEMP%\gdiview.msi"' (with hidden window)
    • '%WINDIR%\syswow64\cmd.exe' /c ping 127.0.0.1 -n 3 & del "<Full path to file>"' (with hidden window)
    • '%WINDIR%\syswow64\cmd.exe' /c taskkill /f /im chrome.exe' (with hidden window)
    • '%WINDIR%\syswow64\cmd.exe' /c taskkill /f /im opera.exe' (with hidden window)
    • '%WINDIR%\syswow64\cmd.exe' /c ping 127.0.0.1 -n 3 & del "%TEMP%\24B5792949671EAD.exe"' (with hidden window)
    Executes the following
    • '%WINDIR%\syswow64\msiexec.exe' /i "%TEMP%\gdiview.msi"
    • '%WINDIR%\syswow64\cmd.exe' /c ping 127.0.0.1 -n 3 & del "<Full path to file>"
    • '%WINDIR%\syswow64\ping.exe' 127.0.0.1 -n 3
    • '%WINDIR%\syswow64\cmd.exe' /c taskkill /f /im chrome.exe
    • '%ProgramFiles(x86)%\mozilla firefox\firefox.exe'
    • '%WINDIR%\syswow64\cmd.exe' /c taskkill /f /im opera.exe
    • '%WINDIR%\syswow64\cmd.exe' /c ping 127.0.0.1 -n 3 & del "%TEMP%\24B5792949671EAD.exe"

    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.
    Download Dr.Web

    Download by serial number

    Use Dr.Web Anti-virus for macOS to run a full scan of your Mac.

    After booting up, run a full scan of all disk partitions with Dr.Web Anti-virus for Linux.

    Download Dr.Web

    Download by serial number

    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.

    Find out more about Dr.Web for Android