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ThreatExpert's Statistics for Troj/Drop-DE [Sophos]:

Troj/Drop-DE [Sophos] is also known as:
Threat AliasNumber of Incidents
Backdoor-DWV.a [McAfee]8
Trojan.Win32.Agent.cnhi [Kaspersky Lab]7
Trojan.Win32.Refroso [Ikarus]5
Win-Trojan/Bifrose.59261 [AhnLab]5
Backdoor.Win32.Gaertob [Ikarus]4
Backdoor.Trojan [Symantec]3
TrojanSpy:Win32/Agent.FGI [Microsoft]3
Win-Trojan/Poison.622592.B [AhnLab]2
Backdoor.Trojan [PC Tools]1
Backdoor-DWV [McAfee]1
Infostealer.Banker.C [Symantec]1
Mal/Generic-A [Sophos]1
Trojan-Spy.Win32.Zbot.wsu [Kaspersky Lab]1
Win32/IRCBot.worm.variant [AhnLab]1
Win-Trojan/Poison.61821 [AhnLab]1

Troj/Drop-DE [Sophos] is known to be created as:
%Temp%\play89.exe
%Temp%\proexa1.exe
Note: %Temp% is a variable that refers to the temporary folder in the short path form. By default, this is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/XP).