Summary
VBSWG.AF is a Visual Basic Script virus found on October 16th, 2001
There has been a virus warning from Anti-Virus vendors calling this VBSWG variant VBS/Antrax (Anthrax). This virus has nothing to do with the old Anthrax virus:
Removal
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:
Check for the latest database updates
First, check if your F-Secure security program is using the latest updates, then try scanning the file again.
Submit a sample
After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.
Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.
Exclude a file from further scanning
If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.
Note: You need administrative rights to change the settings.
Technical Details
Variant:VBSWG.AF
This is an IRC worm and a VBS overwriting virus generated with VBSWG virus kit.
VBSWG.AF is written to spread vie email using Outlook Application but it fails to send the script code as an attachment. Therefore it sends only clean message with the following contents:
Subject: Antrax Info Body: si no sabes que es el antrax o cuales son sus efectos aquite mando una foto para que veas los efectos que tiene. Nota:la foto esta un poco fuerte.
Since the mass-mailing routine fails to send the script code as an attachment (antraxinfo.vbs), VBSWG.AF does not spreads via email.
After this the virus adds a registry key 'Antrax' and uses it as an infection marker so it will not try to excecute the mass-mailing routine again on already infected machines.
However VBSWG is able to spread via mIRC and Pirch by modifying the script.ini and events.ini respectively.
It also searches for files with extension .VBS and .VBE and overwrite them with its code previously saved as antraxinfo.vbs in Windows System directory.
The virus payload activates on Januarry 26th, when it shows the following message box:
Antrax Worm By wAsEk
There are four similar variants of this virus. One of them VBSWG.AH is trying to drop and run a file called Antrax.exe which is an email bombber called Achis. For more information about Achis see the description:
https://www.f-secure.com/v-descs/achis.shtml
However because of bugs in its code VBSWG.AH does not work at all.
F-Secure Anti-Virus detects all these variants with the current updates:
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