Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'System Log Connections Program Isolation' = '<SYSTEM32>\twlskcvhhjvv.exe'
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\Portable Browser SNMP Print WebClient] 'Start' = '00000002'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks the following features:
- Windows Security Center
Creates and executes the following:
- '<SYSTEM32>\xmpnoov.exe' "<SYSTEM32>\twlskcvhhjvv.exe"
- '%WINDIR%\Temp\g2qobm2n05iy.exe' -r 43710 tcp
- '%TEMP%\g2qobm2l03iyitwwbuf.exe'
- '<SYSTEM32>\twlskcvhhjvv.exe'
Modifies file system :
Creates the following files:
- <SYSTEM32>\roubcllr\run
- <SYSTEM32>\roubcllr\rng
- %WINDIR%\Temp\g2qobm2n05iy.exe
- <SYSTEM32>\roubcllr\cfg
- <SYSTEM32>\xmpnoov.exe
- %TEMP%\g2qobm2l03iyitwwbuf.exe
- <SYSTEM32>\roubcllr\tst
- <SYSTEM32>\twlskcvhhjvv.exe
- <SYSTEM32>\roubcllr\etc
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\xmpnoov.exe
- <SYSTEM32>\twlskcvhhjvv.exe
Deletes the following files:
- %WINDIR%\Temp\g2qobm2n05iy.exe
- %TEMP%\g2qobm2l03iyitwwbuf.exe
- <DRIVERS>\etc\hosts
Substitutes the HOSTS file.
Network activity:
UDP:
- '23#.#55.255.250':1900
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
