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Powershell Agent.CRU trojan horse detected

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I have an Exchange Windows server with Eset Mail Security installed.

Every few hours it detects a Powershell/TrojanDownloader.Agent.CRU trojan horse event and Eset cleans it every time, but this detection event keeps coming back regularly after 3 to 6 hours.

How can I remove this malware once for all?


Thank you

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Delete the following registry keys in safe mode please:

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{017BE0C6-5CD2-4095-A15E-35C4A9EED7A0}

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{46EAA988-CF7F-4D36-8759-127A14389D11}

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{6ACD282A-F6F8-4385-AC36-1D7910B9DEFA}

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{774D6847-E406-4023-8A4C-CE86D4F4045F}

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{7951902F-E30F-4FC1-9B60-5A95EA4FBD53}

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{825A3202-C79B-43AA-8FFF-05A52FC198DD}

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{82AE92E7-C842-4355-98E6-D977E1A3419F}

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{B4D645A4-4E05-416E-B03A-F9615D420A37}

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{B6EF8B13-5F13-48DE-A4A9-B5D0444E75C6}

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{C09CFFE3-E222-4AE5-ADD3-02173E39A2FE}

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{F2E9597D-6482-41B8-8951-B3D854032BEF}

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{F6CE8E10-F653-45FB-987D-D5BCAE1CD222}

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I deleted those keys from the registry as you suggested, I'll keep checking if Mail Security will find any other threats and keep you updated.


Thank you again!

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