MysterySnail RAT Returns: Old Malware Learns New Tricks in Mongolia and Russia!
MysterySnail RAT, linked to Chinese IronHusky APT, has resurfaced, targeting Mongolia and Russia with new tactics. This malware’s evolution highlights how old threats never truly vanish—they just get a makeover. Stay vigilant against such resurfacing cybersecurity threats to keep systems safe.

Hot Take:
Well, well, well, if it isn’t MysterySnail RAT back from the dead and trying to make a comeback like a washed-up rock star on a reunion tour! This sneaky little malware thought it could slip back into action unnoticed, but Kaspersky researchers have caught it red (and a bit rusty) handed! Just like that ex who keeps popping back into your life, MysterySnail RAT is back with a makeover and some new tricks up its sleeve – targeting Mongolia and Russia like it’s the latest espionage hotspot. Watch out world, this snail is ready to slime its way back into the cybersecurity scene!
Key Points:
- After years of dormancy, MysterySnail RAT, associated with IronHusky APT, has resurfaced targeting Mongolia and Russia.
- The malware utilizes a malicious MMC script disguised as a document from Mongolia’s National Land Agency for initial infection.
- Recent versions of MysterySnail RAT have been upgraded with modular design, using multiple DLL modules for command execution.
- The return of MysterySnail RAT highlights the evolution of old malware rather than their disappearance.
- MysteryMonoSnail, a streamlined variant, has also been deployed, showcasing the adaptability of threat actors.