Backdoor:Win32/Lybsus.B is a trojan that allows unauthorized access and control of an affected computer.
When executed, Backdoor:Win32/Lybsus.B copies itself to %windir%\config.exe.
The malware modifies the following registry entries to ensure that its copy executes at each Windows start:
Adds value: "winlogon"
With data: "c:\windows\config.exe"
To subkey: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
The malware creates the following files on an affected computer:
Allows backdoor access and control
Backdoor:Win32/Lybsus.B allows unauthorized access and control of an affected computer. An attacker can perform any number of different actions on an affected computer using Backdoor:Win32/Lybsus.B. This could include, but is not limited to, the following actions:
- Download and execute arbitrary files
- Upload files
- Spread to other computers using various methods of propagation
- Log keystrokes or steal sensitive data
- Modify system settings
- Run or terminate applications
- Delete files
This malware description was produced and published using our automated analysis system's examination of file SHA1 d652cb33b7f366ddf942dc1f1ac23697baaa52a6.