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Trojan.Siggen17.62358
Added to the Dr.Web virus database:
2022-06-02
Virus description added:
2022-06-04
Technical Information
To ensure autorun and distribution
Creates or modifies the following files
%WINDIR%\tasks\asliftrightsforclient_sessionsessionid1.job
<SYSTEM32>\tasks\asliftrightsforclient_sessionsessionid1
Malicious functions
Modifies settings of Windows Internet Explorer
[<HKCU>\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\] 'ProxyOverride' = '*.local.pcvisit.com'
[<HKCU>\Software\Microsoft\windows\CurrentVersion\Internet Settings] 'ProxyOverride' = '*.local.pcvisit.com'
Modifies file system
Creates the following files
%TEMP%\nsmc533.tmp\accesscontrol.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\imageformats\qgif.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\imageformats\qico.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\imageformats\qjpeg.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\imageformats\qsvg.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\qt5core.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\qt5gui.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\qt5network.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\qt5networkauth.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\qt5svg.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\qt5websockets.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\qt5widgets.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\platforms\qwindows.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\remoteprocstart_x64.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\remoteprocstart_x86.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\ssleay32.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\ucrtbase.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\vcruntime140.dll
%ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.bzqrpc
%ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.blkmvm
%ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.xesvve
%WINDIR%\syswow64\config\systemprofile\appdata\locallow\microsoft\cryptneturlcache\content\f0accf77cdcbff39f6191887f6d2d357
%WINDIR%\syswow64\config\systemprofile\appdata\locallow\microsoft\cryptneturlcache\metadata\f0accf77cdcbff39f6191887f6d2d357
%ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.vglpjn
%WINDIR%\temp\cab5adc.tmp
%WINDIR%\temp\tar5add.tmp
%ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.bsmrmj
%ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.bhhzez
%ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.lock
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\wodtunnel.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\wodkeys.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\wodftpd.dll
%WINDIR%\temp\rez23d1o-u98p-4azg-ycn0-i824j6gxoxc1.tmp
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\msvcp140.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\libeay32.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\concrt140.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\pcvadhoc.7z
%TEMP%\nsmc533.tmp\nsis7z.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\application_de.qm
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\application_en.qm
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\pcvisit_client_de.qm
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\pcvisit_client_en.qm
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\qtbase_de.qm
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\shared_app_elements_de.qm
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\shared_app_elements_en.qm
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\client.exe
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\pcvdisplayserver.exe
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\pcvisit_client.exe
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\pcvisit_km_starter.exe
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\pcvisit_service_client.exe
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-core-file-l1-2-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-core-file-l2-1-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-core-localization-l1-2-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-crt-time-l1-1-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-crt-string-l1-1-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-crt-stdio-l1-1-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-crt-runtime-l1-1-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-crt-multibyte-l1-1-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-crt-math-l1-1-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-crt-heap-l1-1-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-crt-locale-l1-1-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-crt-filesystem-l1-1-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-crt-environment-l1-1-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-crt-convert-l1-1-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-core-timezone-l1-1-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-core-synch-l1-2-0.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-core-processthreads-l1-1-1.dll
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\api-ms-win-crt-utility-l1-1-0.dll
%TEMP%\e438bz01-6w4j-4t1m-y9ws-5z6fp6c1p2f7.tmp
Deletes the following files
%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\pcvadhoc.7z
%TEMP%\nsmc533.tmp\accesscontrol.dll
%TEMP%\nsmc533.tmp\nsis7z.dll
%ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.lock
%WINDIR%\temp\cab5adc.tmp
%WINDIR%\temp\tar5add.tmp
Moves the following files
from %ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.bhhzez to %ALLUSERSPROFILE%\pcvisit software ag\caloa.ini
from %ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.bsmrmj to %ALLUSERSPROFILE%\pcvisit software ag\caloa.ini
from %ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.vglpjn to %ALLUSERSPROFILE%\pcvisit software ag\caloa.ini
from %ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.xesvve to %ALLUSERSPROFILE%\pcvisit software ag\caloa.ini
from %ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.blkmvm to %ALLUSERSPROFILE%\pcvisit software ag\caloa.ini
from %ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.bzqrpc to %ALLUSERSPROFILE%\pcvisit software ag\caloa.ini
Substitutes the following files
%ALLUSERSPROFILE%\pcvisit software ag\caloa.ini.lock
Network activity
Connects to
'localhost':18701
'lb#.#cvisit.de':80
'lb#.#cvisit.de':443
'localhost':48481
'localhost':48527
'microsoft.com':80
'x.##2.us':80
TCP
HTTP GET requests
http://lb#.#cvisit.de/alive/check.json
http://www.microsoft.com/pki/certs/MicRooCerAut_2010-06-23.crt
http://12#.#.0.1:8126/graphql
http://x.##2.us/x.cer
http://12#.#.0.1:8080/alive/check.json
HTTP POST requests
http://lb#.#cvisit.de/detect.json
Other
'lb#.#cvisit.de':443
'localhost':48481
'localhost':49178
'localhost':49179
'localhost':48527
'localhost':49182
'localhost':49183
'localhost':49187
'localhost':49188
'localhost':49190
'localhost':49191
'localhost':49194
'localhost':49196
UDP
DNS ASK lb#.#cvisit.de
DNS ASK microsoft.com
DNS ASK x.##2.us
Miscellaneous
Searches for the following windows
ClassName: '#32770' WindowName: ''
Creates and executes the following
'%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\pcvisit_service_client.exe'
'%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\pcvisit_service_client.exe' --StartMode AsLiftRightsForClient --session 1
'%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\pcvisit_service_client.exe' AsClient --startPrivilege STARTED_BY_USER_LEVELD_AS_NON_INTERACTIVE
'%LOCALAPPDATA%\pcvisit software ag\caloa\pcvisit.support.guest\release\22.4.19.1900\pcvisit_service_client.exe' --StartMode AsLiftRightsForClient --session 1' (with hidden window)
Executes the following
'%WINDIR%\syswow64\wbem\wmic.exe' os
'%WINDIR%\syswow64\wbem\wmic.exe' logicaldisk where "deviceid = 'c:'" get volumeserialnumber,freespace
'%WINDIR%\syswow64\wbem\wmic.exe' bios get releasedate
'%WINDIR%\syswow64\wbem\wmic.exe' computersystem get manufacturer,model,partofdomain,systemtype,totalphysicalmemory
'%WINDIR%\syswow64\windowspowershell\v1.0\powershell.exe' "get-ciminstance msft_physicaldisk -namespace root\microsoft\windows\storage | select model, size, allocatedsize, mediatype, healthstatus, bustype"
'%WINDIR%\syswow64\wbem\wmic.exe' diskdrive get model,size,mediatype,status
'%WINDIR%\syswow64\wbem\wmic.exe' path win32_videocontroller get name
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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