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ThreatExpert's Statistics for Trojan-Downloader.Win32.Agent.crco [Kaspersky Lab]:

Trojan-Downloader.Win32.Agent.crco [Kaspersky Lab] is also known as:
Threat AliasNumber of Incidents
Trojan Horse [Symantec]8
Trojan.Generic [PC Tools]4
Generic Downloader.x!bqv [McAfee]2
Trojan-Dropper.Agent [Ikarus]2

Trojan-Downloader.Win32.Agent.crco [Kaspersky Lab] has the following possible country of origin:
OriginNumber of Incidents
Republic of Korea3

Trojan-Downloader.Win32.Agent.crco [Kaspersky Lab] is known to be created as:
%ProgramFiles%\ptworld\uninst.exe
%ProgramFiles%\yahoo helper\uninst.exe
%System%\yahoo4setup.exe
Notes:
  • %ProgramFiles% is a variable that refers to the Program Files folder. A typical path is C:\Program Files.
  • %System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).