MSIL/Autorun.Agent.EF [Threat Name] go to Threat
MSIL/Autorun.Agent.EF [Threat Variant Name]
| Category | worm |
| Size | 384000 B |
Short description
MSIL/Autorun.Agent.EF is a worm that spreads via removable media. The worm may attempt to delete all files on the local drives.
Installation
When executed, the worm copies itself into the following location:
- %system%\ESET.exe
In order to be executed on every system start, the worm sets the following Registry entry:
- [HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
- "ESET" = "c:\windows\system32\ESET.exe"
Spreading on removable media
The worm copies itself into the root folders of fixed and/or removable drives using the following name:
- ESET.exe
The following file is dropped in the same folder:
- autorun.inf (27 B)
Thus, the worm ensures it is started each time infected media is inserted into the computer.
Payload information
If the current system date and time matches certain conditions, the worm attempts to delete all files and folders stored on the available drives.
Other information
The worm may execute the following commands:
- %system%\ping.exe -l 65500 192.168.0.1 -t
- %system%\format.com %drive% /q/y
- cmd /c rmdir %folderpath% /fs:ntfs /s/q
- cmd /c dir %drive%\/A:D/B > c:\winnt.dat