Discovered on: February 11, 2004
Last Updated on: February 11, 2004 06:51:09 PM
http://securityresponse.symantec.com/avcenter/venc/data/w32.welchia.b.worm.html
Virus Information
Discovery Date: 02/11/2004
Origin: Unknown
Length: 12,800 bytes
Type: Virus
SubType: Internet Worm
This threat is proactively detected as Exploit-DcomRpc.gen with the 4.2.60 scan engine, or higher, and the 4290 DAT files, or higher, when scanning compressed executables, default option.
AVERT is currently analyzing this threat. Details will be posted as they become available.
This virus exploits the MS03-026 / MS03-049 vulnerability. In addition to exploiting this RPC DCOM vulnerability, the virus also attempts to exploit an NTDLL.DLL vulnerability (MS03-007 ) via WebDav.
http://vil.nai.com/vil/content/v_101013.htm

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