Threat Alert Service (KTP)

 

Suspect a Virus?

How do you know when you have a virus? 

The number one rule when you think you have a virus, but your anti-virus software isn’t identifying a problem is: Don’t Panic. The second rule is check your McAfee software and ensure you are running the most up to date virus engine. 

If you aren’t, install the latest engine and then scan your machine. If your system turns up clean and you still think you have a virus, then send a sample of the suspect file, or a detailed list of symptoms to the AVERT team, McAfee’s world class virus research facility. They will need the following information:

· What symptoms cause you to suspect that your machine is infected 
· Whether any products find a virus (version number, company, results) 
· Your Virus Scan information (version number and DAT set number) 
· System details that may be relevant about your system 
· Your name, company name, phone number and email address if possible 
· A list of all items contained in the package/message you are composing 
Most samples can be submitted electronically. Please be sure to ZIP them, password protect them and use the password INFECTED. Send your samples to 

virus_research@nai.com


If you suspect a Boot Virus, please include the following information;
· Go to the DOS prompt 
· Format A: /s one diskette 
· If the system hangs while trying to format the diskette, write on the label of the diskette "damaged during infected format as boot disk". Set it aside to mail 
· Copy system files to a single preformatted diskette 
· For Windows, please include the following files on the same preformatted diskette:

gdi.exe
krnl286.exe or krnl386.exe
progman.exe 

NOTE: If you suspect you have a Boot Virus, unless you use RWFLOPPY, you must send your samples physically. If you send them electronically they will not be a complete or useable sample, as Boot Viruses often hide beyond the last sectors of a diskette, and other diskette image creation programs cannot obtain this data.

If you suspect a file or macro virus, please include the following information;
· Go to the DOS prompt 
· Format A: /s one diskette 
· If the system hangs while trying to format the diskette, write on the label of the diskette "damaged during infected format as boot disk". Set it aside to mail 
· Copy system files to a single preformatted diskette 
· For Windows, please include the following files on the same preformatted diskette:

gdi.exe
krnl286.exe or krnl386.exe
progman.exe 

If you suspect a trojan, please include the following information;
· Check for file names in these locations, and copy those files, not the lines mentioning them, into a zip file for analysis. 
· HKEY_LOCAL_MACHINE\Software\Microsoft\Windows
\CurrentVersion in your registry. 
· Run and RunService in your registry, 
· load= and run= lines in your Win.INI file

 

Courtesy of NAI AVERT Labs