Threat Description

DIR-II

Details

Aliases: DIR-II, Creeping Death
Category: Malware
Type: Virus
Platform: W32

Summary



This virus is written by the same authors as the Shake, MG and DIR viruses. It uses an unique method to infect files, as it does not change the files, but only the directory entries.

DIR-II is a full stealth virus, but F-Secure anti-virus products will detect it from memory and will advice you to boot from a clean diskette. If you analyze your hard drive after booting clean, you will see that all infected executables are cross-linked. Don't try to correct this.

DIR-II can be disinfected by renaming all executables to non-executable extensions while the virus is active, then booting clean and renaming them back. After this, run chkdsk.



Removal



Automatic Disinfection

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

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








Description Created: Mikko Hypponen, F-Secure


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