Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Registry Services' = 'C:\WINNIT\0x03847\SYS\RegistryServiceBackup.vbs'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Registry Services' = 'C:\WINNIT\0x03847\SYS\RegistryServiceBackup.vbs'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Network Services' = 'C:\WINNIT\0x03847\SYS\cService.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Network Services' = 'C:\WINNIT\0x03847\SYS\cService.exe'
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
blocks the following features:
- System Restore (SR)
Creates and executes the following:
- C:\WINNIT\0x03847\SYS\cService.exe
Executes the following:
- <SYSTEM32>\wscript.exe "C:\WINNIT\0x03847\SYS\NetworkService.vbs"
- <SYSTEM32>\wscript.exe "C:\WINNIT\0x03847\SYS\RegistryServiceBackup.vbs"
Modifies file system :
Creates the following files:
- C:\WINNIT\0x03847\SYS\hhhService.txt
- C:\WINNIT\0x03847\SYS\NetworkService.vbs
- C:\WINNIT\0x03847\SYS\cService.exe
- C:\WINNIT\0x03847\SYS\RegistryServiceBackup.vbs
Sets the 'hidden' attribute to the following files:
- C:\WINNIT\0x03847\SYS\NetworkService.vbs
- C:\WINNIT\0x03847\SYS\RegistryServiceBackup.vbs
- C:\WINNIT\0x03847\SYS\cService.exe
Network activity:
UDP:
- DNS ASK lo#.2dt.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''