New Windows malware may soon target Linux, macOS devices

Bleeping Computer

Newly discovered Windows info-stealing malware linked to an active threat group tracked as AridViper shows signs that it might be used to infect computers running Linux and macOS.

The new trojan, dubbed PyMICROPSIA by Unit 42, was discovered while investigating AridViper activity (also tracked as Desert Falcon and APT-C-23), a group of Arabic speaking cyberspies focusing their attacks on Middle Eastern targets since at least 2011.

AridViper operates mainly out of Palestine, Egypt, and Turkey, and the number of victims they compromised exceeded 3,000 in 2015 [PDF], according to the Global Research and Analysis Team (GReAT) at Kaspersky Lab.

New attack vectors found within the code

While PyMICROPSIA is a Python-based malware that specifically targets Windows systems using a Windows binary generated using PyInstaller, Unit 42 has also found code snippets showing that its creators are potentially working on adding multi-platform support.

PyMICROPSIA is designed to target Windows operating systems only, but the code contains interesting snippets checking for other operating systems, such as ‘posix’ or ‘darwin’, as Unit 42 said.

This is an interesting finding, as we have not witnessed AridViper targeting these operating systems before and this could represent a new area the actor is starting to explore.

Despite this, these checks might have been introduced by the malware’s developers while copy-pasting code from other ‘projects’ and could very well be removed in future versions of the PyMICROPSIA trojan.

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