Threat Description

Sandrine

Details

Aliases: Sandrine
Category: Malware
Type: Virus
Platform: W32

Summary



Sandrine, a simple companion virus, spread through a file called 486up.com which was supposed to improve a 486's performance by 20 to 30%. Instead, it contained a simple 445 bytes long companion virus.



Removal



Automatic Disinfection

Allow F-Secure Anti-Virus to disinfect the relevant files.

For more general information on disinfection, please see Removal Instructions.



Technical Details



Sandrine took advantage of the fact that the DOS EXEC loader executes a COM file before executing a similarly named EXE file if both files are found in the same directory. Sandrine virus has an activation routine, during which it creates a file called SANDRINE.COM. This file contains the text:

Sandrine Baillieux thoughts of you are in my mind
        (c) 1994 by BrokenHeart

It seems that BrokenHeart was twice unlucky: Sandrine was detected by a F-Secure anti-virus scanner in heuristic mode.






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