Na stronie Avasta można znaleźć następujęcąwypowiedź, która wyjaśnia "wirusy" w kodzie Pandy
Q: False alarm - viruses detected in Panda Antivirus files (Win95:Matyas and Win32:Kuang2 in PAV.SIG mainly)?!
A: This is a known problem. Let´s try to explain what´s going on:
Every virus can be identified, because it contains some unique signatures. Antiviral programs have their own database of that signatures. We call this database the "virus definition file".
When an antiviral program scans a file for viruses, it compares all the signatures (of all viruses) in the database with the signatures in that file. If the signatures match (they are the same), the file is marked as infected. For an antivirus program, it is important to hide this database of signatures somehow - e.g. by encrypting it. Panda Antivirus does not encrypt its virus database - the signatures inside are clearly "visible" to other antiviral programs, so they detect this file as infected (but there is actually no virus inside - only the signatures are the same).
We can´t do anything about that, only recommend not to use two or more antiviral programs at the same time, or put that files to the list of exclusions, so they will not be scanned anymore.
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Additional info:
Here is the list of Panda Antivirus files that avast! detects as infected:
IMSCAN.DLL
PAVDLL.DLL
PAV.SIG
APVXD.VX2
APVXD.VXD
Here is the list of viruses that are detected in the mentioned Panda Antivirus files. Keep on mind that the list is not complete and may change in the future:
Gift-724
VBS:Redlof
Win32:Aliser
Win32:Bolzano-3011
Win32:Bolzano-3223
Win32:Bolzano-3384
Win32:Crypto
Win32:CTX
Win32:Kenston
Win32:Kuang2
Win32:Nimda [Drp]
Win32:Qozah-C
Win32:Small-1700
Win32:Vypne [Trj]
Win95:Boza
Win95:Bumblebee
Win95:CIH 1.x
Win95:CIH-1106
Win95:CIH-1142
Win95:Fabi-B
Win95:Filezz-B
Win95:Hazlo
Win95:Heathen
Win95:Kenston
Win95:Leviathan-3236
Win95:Leviathan-3240
Win95:Leviathan-B
Win95:Matyas
Win95:One-SGWW
Win95:Orochi
Win95:PowerFul
Win95:Sledge-689
Win95:Werther