Threat Description

Reverse

Details

Aliases: Reverse, Red Spider, Redspide
Category: Malware
Type: Virus
Platform: W32

Summary



Reverse stays resident in memory and infects COM and EXE files when they are accessed.



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



Reverese is encrypted with a variable key. The body of the virus contains two filenames written backwards:

    moc.dnammoc
      exe.niamcn

COMMAND.COM is infected by overwriting a block of zeroes inside it. NCMAIN.EXE is not infected at all.

Reverse contains the following text, which is not displayed:

    Reverse-948 Created by Renata G. from Lubin City in Sept 1993


Variant:Reverse.B

Similar and also 948 bytes, but contains this text:

    Red Spider Virus created by Garfield from Zielona Gora in Feb 1993





Description Created: Mikko Hypponen, F-Secure


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