Threat Description



Aliases: Carewmr, VBS/Carewmr, VBS.AVFake
Category: Malware
Type: Trojan
Platform: VBS


VBS/Carewmr is a trojan written with Visual Basic Script. Upon execution the trojan displays three messages.


Automatic Disinfection

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

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

Technical Details

This a simple trojan that, when executed, will show following three messages:

	Welcome to CLRAV of Kaspersky Labs, press OK or Accept to Start
	scanning your computer.

	ERROR!, Code error:3212552, please execute this tool in MS-DOS.

	Thank You for prefer Kaspersky Labs Products

At September 1st, it shows an additional message in Spanish:

	Mr.Carew vuelve otra vez!!, jaja

which means in English

	Mr.Carew comes back again!!, jaja

After these messsages, the trojan will open the web page using the default browser.

Next, the trojan attemps to remove a number of registry keys, attempting to disable several security software:

	HKLM\Software\Microsoft\Windows\CurrentVersion\Run\ZoneAlarm Pro

The trojan also creates a number of directories and empty files to the root of the C: drive using for example names of different anti-virus products. It also attempts to delete all files from the C:\Windows directory.

Finally the trojan creates a text file to the current directory "CLRAV_Report.log" with the following content:

	Due an error, Code error:3212552, CLRAV has not disinfect your
	computer For Support please send a e-mail to
	and please indicate the Code Error.

The trojan has the following comment in the beginning:

'VBS.CarewMR.a By Jadraquer Killer (Mr.Carew)


F-Secure Anti-Virus detects this trojan with the current updates.

Technical Details: Katrin Tocheva and Sami Rautiainen; translation: Ero Carrera; F-Secure Corp.; October 22th, 2002


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