Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Xjjqegfyxzwnc' = '%APPDATA%\ICQM\ICQ\html\tr\fF1c4dFs\SystemPropertiesComputerName.exe'
Creates or modifies the following files
- <SYSTEM32>\tasks\bfcasizxfebvg
- %APPDATA%\Microsoft\windows\Start Menu\programs\startup\pyihbifcoujiexi.lnk
Malicious functions
Executes the following
- '<SYSTEM32>\netsh.exe' advfirewall firewall add rule name="Core Networking - Multicast Listener Done (ICMPv4-In)" program="%WINDIR%\Explorer.EXE" dir=in action=allow protocol=TCP localport=any
Injects code into
the following system processes:
- %WINDIR%\explorer.exe
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\taskmgr.exe
- <SYSTEM32>\systempropertiescomputername.exe
- <SYSTEM32>\rstrui.exe
the following user processes:
- firefox.exe
- iexplore.exe
Modifies file system
Creates the following files
- %LOCALAPPDATA%\d6snstzl\secur32.dll
- %LOCALAPPDATA%\d6snstzl\taskmgr.exe
- %APPDATA%\icqm\icq\html\de\loading\kwiwxaefq\secur32.dll
- %APPDATA%\icqm\icq\html\de\loading\kwiwxaefq\taskmgr.exe
- %LOCALAPPDATA%\ukavcl\sysdm.cpl
- %LOCALAPPDATA%\ukavcl\systempropertiescomputername.exe
- %APPDATA%\icqm\icq\html\tr\ff1c4dfs\sysdm.cpl
- %APPDATA%\icqm\icq\html\tr\ff1c4dfs\systempropertiescomputername.exe
- %LOCALAPPDATA%\t0ez5kym\spp.dll
- %LOCALAPPDATA%\t0ez5kym\rstrui.exe
- %APPDATA%\thunderbird\profiles\wjj9aet2.default\a9gjq4czx\spp.dll
- %APPDATA%\thunderbird\profiles\wjj9aet2.default\a9gjq4czx\rstrui.exe
Deletes the following files
- %LOCALAPPDATA%\d6snstzl\secur32.dll
- %LOCALAPPDATA%\d6snstzl\taskmgr.exe
- %LOCALAPPDATA%\ukavcl\sysdm.cpl
- %LOCALAPPDATA%\ukavcl\systempropertiescomputername.exe
- %LOCALAPPDATA%\t0ez5kym\rstrui.exe
- %LOCALAPPDATA%\t0ez5kym\spp.dll
Substitutes the following files
- %APPDATA%\Microsoft\Crypto\RSA\S-1-5-21-1960123792-2022915161-3775307078-1001\f58155b4b1d5a524ca0261c3ee99fb50_36d1130a-ac2e-44f7-9dc1-e424fbcbe0ee
Miscellaneous
Creates and executes the following
- '%LOCALAPPDATA%\d6snstzl\taskmgr.exe'
- '%LOCALAPPDATA%\ukavcl\systempropertiescomputername.exe'
- '%LOCALAPPDATA%\t0ez5kym\rstrui.exe'
- '<SYSTEM32>\netsh.exe' advfirewall firewall add rule name="Core Networking - Multicast Listener Done (ICMPv4-In)" program="%WINDIR%\Explorer.EXE" dir=in action=allow protocol=TCP localport=any' (with hidden window)
