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Iranian APT Group OilRig Utilizing New Menorah Malware for Covert Operations

Sep 30, 2023THNCyber Espionage / Malware

Menorah Malware

Refined cyber actors backed by Iran often known as OilRig have been linked to a spear-phishing marketing campaign that infects victims with a brand new pressure of malware referred to as Menorah.

“The malware was designed for cyberespionage, able to figuring out the machine, studying and importing information from the machine, and downloading one other file or malware,” Pattern Micro researchers Mohamed Fahmy and Mahmoud Zohdy mentioned in a Friday report.

The victimology of the assaults just isn’t instantly recognized, though using decoys signifies at the least one of many targets is a corporation positioned in Saudi Arabia.


Additionally tracked beneath the names APT34, Cobalt Gypsy, Hazel Sandstorm, and Helix Kitten, OilRig is an Iranian superior persistent menace (APT) group that makes a speciality of covert intelligence gathering operations to infiltrate and keep entry inside focused networks.

The revelation builds on latest findings from NSFOCUS, which uncovered an OilRig phishing assault ensuing within the deployment of a brand new variant of SideTwist malware, indicating that it is beneath steady improvement.

Within the newest an infection chain documented by Pattern Micro, the lure doc is used to create a scheduled activity for persistence and drop an executable (“Menorah.exe”) that, for its half, establishes contact with a distant server to await additional directions. The command-and-control server is at the moment inactive.


The .NET malware, an improved model of the unique C-based SideTwist implant found by Examine Level in 2021, is armed with numerous options to fingerprint the focused host, listing directories and information, add chosen information from the compromised system, execute shell instructions, and obtain information to the system.

“The group constantly develops and enhances instruments, aiming to cut back safety options and researchers’ detection,” the researchers mentioned.

“Typical of APT teams, APT34 demonstrates their huge assets and different expertise, and can possible persist in customizing routines and social engineering strategies to make use of per focused group to make sure success in intrusions, stealth, and cyber espionage.”

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