Trojan.Zbot!gen54 is a heuristic detection used to detect threats associated with the Trojan.Zbot family.

Initial Daily Certified version of virus definitions for Norton security products was released on August 28, 2013 revision 016. It should be noted that users with the older versions of Norton Internet Security are limited to Daily LiveUpdate definitions. For more information, go to the page where the are described virus definitions available for Norton products.

Trojan.Zbot!gen54 Threat Assessment

Component	Severity
Wild Level	Medium
Number of Infections	50 - 999
Number of Sites	3 - 9
Geographical Distribution	Medium
Threat Containment	Easy
Removal	Easy
Damage Level	High
Distribution Level	Low

According to the Symantec Threat Severity Assessment, overall risk of Trojan.Zbot!gen54 is now categorized as «Low» — threat type characterized either as low or moderate wild threat (but reasonably harmless and containable) or non-wild threat characterized by an unusual damage or spread routine, or perhaps by some feature of the virus that makes headlines in the news. Read more about Threat Severity Assessment.

More information about Trojan.Zbot!gen54, you can find on the official site of Symantec Corporation, where in addition to useful information you can find technical details and removal instructions: www.symantec.com

It is also recommended to read the article Network security threats, where you can find a brief description and explanation of the most dangerous security threats plus a few simple tips on how to protect your personal computer from them.