W32.Reatle.C@mm

Risk Level 2: Low

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Discovered:: July 15, 2005
Updated:: February 13, 2007 12:42:19 PM
Also Known As:: Lebreat [F-Secure], Net-Worm.Win32.Lebreat.gen [Ka, W32/Reatle.gen@MM [McAfee], W32/Lebreat.C.worm [Panda], W32/Lebreat-C [Sophos], WORM_REATLE.C [Trend Micro]
Type:: Worm
Systems Affected:: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP

W32.Reatle.C@mm is a variant of W32.Reatle@mm, and is a mass-mailing worm that opens a back door and attempts to spread by exploiting the Microsoft Windows LSASS Buffer Overrun Vulnerability (Microsoft Security Bulletin MS04-011) on TCP port 445.

It also downloads a copy W32.Rants.B@mm and a variant of W32.Spybot.Worm.

Antivirus Protection Dates

Initial Rapid Release version July 16, 2005
Latest Rapid Release version October 30, 2008 revision 038
Initial Daily Certified version July 16, 2005
Latest Daily Certified version October 30, 2008 revision 049
Initial Weekly Certified release date July 20, 2005

Click for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment

Wild

Wild Level: Low
Number of Infections: 0 - 49
Number of Sites: More than 10
Geographical Distribution: Low
Threat Containment: Easy
Removal: Moderate

Damage

Damage Level: Medium

Distribution

Distribution Level: High

Writeup By: Maryl Magee

Technical Details

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Internet Security Threat Report, Volume 16