Win32.Donut
Description Win32.Donut
This is a harmless parasitic Win32 virus. It consists of two parts: the virus itself written in assembly language, and the payload written in MSIL.
The virus searches for Win32 PE EXE .NET applications. It infects files in up to 20 upper level directories.
While infecting, the virus writes itself to the end of the file, then the virus writes its payload instead of the original host's metadata, which is moved down. When an infected file is launched, the virus creates a copy of the infected file, restores its metadata and launches it.
The original content of infected files is able to work only in Windows 2000. When an infected file is launched in Windows XP, the virus will still work, but the host file won't launch.
Depending of the random counter (in 1 in 10 cases), the virus displays the following message box:
________________________________________________
I.NET.dotNET by Benny/29A I
I_______________________________________________I
IThis cell has been infected by dotNET virus! I
I_______________________________________________I
The virus body contains the text string:
This cell has been infected by dotNET virus!
Check other viruses! Be aware! Use Antiviral Software
Boing.349
Description Boing.349
It is a harmless nonmemory resident encrypted parasitic virus. It search for .COM files and writes itself to the end of the file. It contains the string:
[BOING]
Bolek.1326
Description Bolek.1326
It's a not dangerous memory resident parasitic virus. It writes itself at the end of EXE-files. On execution it searches for the EXE-files and hits them, then it hooks INT 21h and infects EXE-files that are executed. It hooks INT 1, 3, 9, 15h, 1Ch also, depending on several conditions it displays different characters. This virus also contains the internal text string "Bolek".
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