W32.Novarg.A@mm is a mass-mailing worm that arrives as an attachment with the file extension .bat, .cmd, .exe, .pif, .scr, or .zip.
When a computer is infected, the worm will set up a backdoor into the system by opening TCP ports 3127 through 3198, which can potentially allow an attacker to connect to the computer and use it as a proxy to gain access to its network resources.
In addition, the backdoor can download and execute arbitrary files.
The worm will perform a Denial of Service (DoS) starting on February 1, 2004. It also has a trigger date to stop spreading on February 12, 2004.
Note:
Symantec Consumer products that support Worm Blocking functionality automatically detect this threat as it attempts to spread.
Symantec Security Response has developed a removal tool to clean the infections of W32.Novarg.A@mm
Also Known As: W32/Mydoom@MM [McAfee], WORM_MIMAIL.R [Trend], Win32.Mydoom.A [Computer Associates], W32/Mydoom-A [Sophos], I-Worm.Novarg [Kaspersky]
Type: Worm
Infection Length: 22,528 bytes, variable file size for a .zip attachment
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
Systems Not Affected: DOS, Linux, Macintosh, OS/2, UNIX, Windows 3.x
When a computer is infected, the worm will set up a backdoor into the system by opening TCP ports 3127 through 3198, which can potentially allow an attacker to connect to the computer and use it as a proxy to gain access to its network resources.
In addition, the backdoor can download and execute arbitrary files.
The worm will perform a Denial of Service (DoS) starting on February 1, 2004. It also has a trigger date to stop spreading on February 12, 2004.
Note:
Symantec Consumer products that support Worm Blocking functionality automatically detect this threat as it attempts to spread.
Symantec Security Response has developed a removal tool to clean the infections of W32.Novarg.A@mm
Also Known As: W32/Mydoom@MM [McAfee], WORM_MIMAIL.R [Trend], Win32.Mydoom.A [Computer Associates], W32/Mydoom-A [Sophos], I-Worm.Novarg [Kaspersky]
Type: Worm
Infection Length: 22,528 bytes, variable file size for a .zip attachment
Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP
Systems Not Affected: DOS, Linux, Macintosh, OS/2, UNIX, Windows 3.x