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Virus Profile: X97M/Anis

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Virus Profile information details
Risk Assessment: Home Low | Corporate Low
Date Discovered: 1/30/2002
Date Added: 6/29/2002
Origin: Unknown
Length: N/A
Type: Virus
Subtype: Macro
DAT Required: 4185
Removal Instructions
   
 
 
   

Description

This is a virus detection. Viruses are programs that self-replicate recursively, meaning that infected systems spread the virus to other systems, which then propagate the virus further. While many viruses contain a destructive payload, it's quite common for viruses to do nothing more than spread from one system to another.

Indication of Infection

Excel's macro warning displayed. Message boxes mentioned above.

Methods of Infection

Opening an infected spreadsheet will infect Excel's startup directory, and then infect other spreadsheets.

Aliases

EXCEL.97.Bdoc2.A (VirusBuster), Macro.Excel97.BDoc2 (Kaspersky), MX97:Anis family (Alwil), X97M.Anis (NAV), X97M.Bdoc2 (Ikarus), X97M.Bdoc2.A (Softwin, MkS) , X97M/BDoc2.A (GeCAD), X97M_BDOC2.A (Trend), XM97/Bdoc2-A (Sophos)
   

Virus Characteristics

This is an Excel 97 and above macro virus. It exists in a module called "bdoc2". It stores itself in Excel's Startup Directory as a file called "AutoRun.xla".

If the date is April 26, it displays the message "─·╩╣╙├╡─╩╟╡┴░µ╚φ╝■,╟δEmail To:zdqjs@sina.com ╤░╟≤░∩╓·", otherwise if the date is the 26th of any month, it displays the message "─·╩╣╙├╡─╩╟╡┴░µ╚φ╝■". If the date is divisible by 5, it exits Windows.