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ThreatExpert's Statistics for Troj/Rootkit-FI [Sophos]:

Troj/Rootkit-FI [Sophos] is also known as:
Threat AliasNumber of Incidents
Backdoor.Win32.Farfli [Ikarus]5
Hacktool.Rootkit [Symantec]5
Trojan-Downloader.Win32.Agent.bqeq [Kaspersky Lab]4
Win-Trojan/Farfli.28160 [AhnLab]4
Hacktool.Rootkit!sd6 [PC Tools]1
Trojan-Downloader.Win32.Agent.bour [Kaspersky Lab]1
Win-Trojan/Agent.28160.GK [AhnLab]1

Troj/Rootkit-FI [Sophos] has the following possible country of origin:
OriginNumber of Incidents
China5