W32.Junkcomp

W32.Junkcomp is a polymorphic virus that infects the Portable Executable (PE) files.



Under some circumstances, W32.Junkcomp can corrupt files instead of infecting them. Such corrupted files have random data appended at the end, and possibly some slight modifications in the PE header; however, they should still be functional. The files usually will not be detected, since the virus is not present in them.

W32.Junkcomp fails to test for its own presence in infected files, and thus W32.Junkcomp will reinfect them. Each infection cycle makes the file grow by 32 KB.

Protection

• Initial Rapid Release version January 7, 2003
• Latest Rapid Release version July 19, 2008 revision 019
• Initial Daily Certified version January 7, 2003
• Latest Daily Certified version January 20, 2009 revision 048
• Initial Weekly Certified release date January 8, 2003

Click here 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: 0 - 2
• Geographical Distribution: Low
• Threat Containment: Easy
• Removal: Easy

Damage

• Damage Level: Low

Distribution

• Distribution Level: Low