The threat actor known as Mysterious Elephant has been observed using an advanced version of malware called Asyncshell.
The attack campaign is said to have used Hajj-themed lures to trick victims into executing a malicious payload under the guise of a Microsoft Compiled HTML Help (CHM) file, the Knownsec 404 team said in an analysis published today.
Mysterious Elephant, which is also known as

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By rooter