Misoft's anti-virus service has warned about the simultaneous emergence of two dangerous worms, WORM_KELVIR.B and WORM_FATSO.A, and attacked users through the CHAT MSN application. . Both were rated high risk and rate of infection.
WORM_KELVIR.B is distributed through MSN's CHAT application. Deep attack by sending messages to all users Online at CHAT MSN. The user's message can be received as in the image. When the user clicks on the link, the worm will execute its copy of the file in the OMG.PIF file. Once downloaded, the worm will download another virus from the Internet to the victim machine, the virus that Trend Micro discovered was named WORM_SDBOT.AUI.
WORM_FATSO.A is capable of spreading on 2 CHAT MSN or peer-to-peer networks. The attack method in MSN's CHAT worm is similar to that of WORM_KELVIR.B. In addition, it is capable of infecting files shared on peer-to-peer networks such as KaZaA, Bearshare, and Limewire. There are also deep interruptions of the applications of antivirus and security programs.
Both worms are infected on machines running Windows 95, 98, ME, NT, 2000, and XP. Users should be vigilant to avoid them, and update the virus to prevent the consequences
