Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'audiodg' = '"%ALLUSERSPROFILE%\Desktop\audiodg.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'audiodg' = '"%ALLUSERSPROFILE%\Desktop\audiodg.exe"'
- [HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, "%ALLUSERSPROFILE%\Desktop\audiodg.exe"'
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'csrss' = '"C:\kms\csrss.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'csrss' = '"C:\kms\csrss.exe"'
- [HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, "%ALLUSERSPROFILE%\Desktop\audiodg.exe", "C:\kms\csrss.exe"'
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'audiodg' = '"%ALLUSERSPROFILE%\Start Menu\audiodg.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'audiodg' = '"%ALLUSERSPROFILE%\Start Menu\audiodg.exe"'
- [HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, "%ALLUSERSPROFILE%\Desktop\audiodg.exe", "C:\kms\csrss.exe", "%ALLUSERSPROFILE%\Start Menu\audiodg.exe"'
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'WUDFHost' = '"C:\kms\WUDFHost.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'WUDFHost' = '"C:\kms\WUDFHost.exe"'
- [HKLM\Software\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'explorer.exe, "%ALLUSERSPROFILE%\Desktop\audiodg.exe", "C:\kms\csrss.exe", "%ALLUSERSPROFILE%\Start Menu\audiodg.exe", "C...
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] 'firefox' = '"C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] 'firefox' = '"C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe"'
- [HKCU\Software\Microsoft\Windows\CurrentVersion\Run] '<File name>' = '"<Full path to file>"'
- [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] '<File name>' = '"<Full path to file>"'
Creates or modifies the following files
- <SYSTEM32>\tasks\audiodga
- <SYSTEM32>\tasks\audiodg
- <SYSTEM32>\tasks\csrssc
- <SYSTEM32>\tasks\csrss
- <SYSTEM32>\tasks\wudfhostw
- <SYSTEM32>\tasks\wudfhost
- <SYSTEM32>\tasks\firefoxf
- <SYSTEM32>\tasks\firefox
- <SYSTEM32>\tasks\<File name>c
- <SYSTEM32>\tasks\<File name>
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 '%ALLUSERSPROFILE%\Desktop\audiodg.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath '%ALLUSERSPROFILE%\Start Menu\audiodg.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:\kms\csrss.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath '<Full path to file>'
- '<SYSTEM32>\windowspowershell\v1.0\powershell.exe' -Command Add-MpPreference -ExclusionPath 'C:\kms\WUDFHost.exe'
Modifies file system
Creates the following files
- <Current directory>\df483abb4e8ae9
- %TEMP%\lkqynkwkng.bat
- %TEMP%\5jl7uqtwbx
- %TEMP%\evnm4iy4.out
- %TEMP%\evnm4iy4.cmdline
- %TEMP%\evnm4iy4.0.cs
- %ALLUSERSPROFILE%\desktop\42af1c969fbb7b
- %ALLUSERSPROFILE%\desktop\audiodg.exe
- C:\kms\886983d96e3d3e
- C:\kms\csrss.exe
- %ALLUSERSPROFILE%\start menu\42af1c969fbb7b
- %ALLUSERSPROFILE%\start menu\audiodg.exe
- C:\kms\480b7989c529f6
- C:\kms\wudfhost.exe
- C:\recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\0fc223bdacedc3
- C:\recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe
- nul
- %HOMEPATH%\desktop\pqbuiogv.log
Deletes the following files
- %TEMP%\evnm4iy4.0.cs
- %TEMP%\evnm4iy4.out
- %TEMP%\evnm4iy4.cmdline
- %TEMP%\5jl7uqtwbx
Moves the following files
- from %ProgramFiles%\microsoft office\office14\bcssync.exe to %ProgramFiles%\microsoft office\office14\bcssync.exe.exe
Network activity
TCP
Other
- '34.##9.100.209':443
Miscellaneous
Creates and executes the following
- '%ALLUSERSPROFILE%\start menu\audiodg.exe'
- 'C:\kms\csrss.exe'
- 'C:\recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe'
Executes the following
- '<SYSTEM32>\schtasks.exe' /create /tn "audiodga" /sc MINUTE /mo 14 /tr "'%ALLUSERSPROFILE%\Desktop\audiodg.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "WUDFHost" /sc ONLOGON /tr "'C:\kms\WUDFHost.exe'" /rl HIGHEST /f
- '<SYSTEM32>\taskeng.exe' {2DD11A88-938F-44DE-8F60-C928B4DADF55} S-1-5-21-3691498038-2086406363-2140527554-1000:sdzjayfpve\user:Interactive:[1]
- '<SYSTEM32>\ping.exe' -n 10 localhost
- '<SYSTEM32>\chcp.com' 65001
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\LKQynKWKNG.bat"
- '<SYSTEM32>\schtasks.exe' /create /tn "<File name>c" /sc MINUTE /mo 9 /tr "'<Full path to file>'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "<File name>" /sc ONLOGON /tr "'<Full path to file>'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "<File name>c" /sc MINUTE /mo 10 /tr "'<Full path to file>'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "firefoxf" /sc MINUTE /mo 6 /tr "'C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "firefoxf" /sc MINUTE /mo 6 /tr "'C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "firefox" /sc ONLOGON /tr "'C:\Recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "WUDFHostW" /sc MINUTE /mo 7 /tr "'C:\kms\WUDFHost.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "audiodg" /sc ONLOGON /tr "'%ALLUSERSPROFILE%\Start Menu\audiodg.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "audiodga" /sc MINUTE /mo 14 /tr "'%ALLUSERSPROFILE%\Start Menu\audiodg.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\kms\csrss.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "csrss" /sc ONLOGON /tr "'C:\kms\csrss.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\kms\csrss.exe'" /f
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\csc.exe' /noconfig /fullpaths @"%TEMP%\evnm4iy4.cmdline"
- '<SYSTEM32>\schtasks.exe' /create /tn "audiodga" /sc MINUTE /mo 12 /tr "'%ALLUSERSPROFILE%\Desktop\audiodg.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "audiodg" /sc ONLOGON /tr "'%ALLUSERSPROFILE%\Desktop\audiodg.exe'" /rl HIGHEST /f
- '<SYSTEM32>\schtasks.exe' /create /tn "WUDFHostW" /sc MINUTE /mo 12 /tr "'C:\kms\WUDFHost.exe'" /f
- '<SYSTEM32>\schtasks.exe' /create /tn "audiodga" /sc MINUTE /mo 11 /tr "'%ALLUSERSPROFILE%\Start Menu\audiodg.exe'" /rl HIGHEST /f
- '%WINDIR%\microsoft.net\framework64\v4.0.30319\csc.exe' /noconfig /fullpaths @"%TEMP%\evnm4iy4.cmdline"' (with hidden window)
- '<SYSTEM32>\cmd.exe' /C "%TEMP%\LKQynKWKNG.bat"' (with hidden window)
- 'C:\kms\csrss.exe' ' (with hidden window)
- 'C:\recovery\4d53d3aa-5835-11ef-baad-8f07b80b2fb5\firefox.exe' ' (with hidden window)
