Trojan.Hongmosa

Trojan.Hongmosa is a proof-of-concept Trojan that exploits the Microsoft Excel Style Handling and Repair Remote Code Execution Vulnerability (BID 18872). The Excel file is found on the Web as Nanika.xls, which looks like a Japanese file name but it has been first created by a Traditional Chinese version of Microsoft Excel.

Protection

• Initial Rapid Release version July 5, 2006
• Latest Rapid Release version August 20, 2008 revision 017
• Initial Daily Certified version July 5, 2006
• Latest Daily Certified version August 20, 2008 revision 016
• Initial Weekly Certified release date July 5, 2006

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