Worm:Win32/Vundo.A is a worm that spreads by copying itself to mapped drives in the computer. Vundo is also a family known to display pop-ups that are usually related to fake antivirus software. It may prevent security processes and features from functioning properly.
The following system changes may indicate the presence of this malware:
- The absence of the following Microsoft file from your computer: mrt.exe
- Alert notifications from installed legitimate antivirus software may be the one of the only symptom(s)