Multi-Stage Malware Attack Uses .JSE and PowerShell to Deploy Agent Tesla and XLoader

A new multi-stage attack has been observed delivering malware families like Agent Tesla variants, Remcos RAT, and XLoader. "Attackers increasingly rely on such complex delivery mechanisms to evade detection, bypass traditional sandboxes, and ensure successful payload delivery and execution," Palo...

Suspected Exploitation of Apache ActiveMQ CVE-2023-46604

Tom Elkins, John Fenninger, Evan McCann, Matthew Smith, and Micah Young contributed attacker behavior insights to this blog. Beginning Friday, October 27, Rapid7 Managed Detection and Response MDR identified suspected exploitation of Apache ActiveMQ CVE-2023-46604 in two different customer...

New PowerExchange Backdoor Used in Iranian Cyber Attack on UAE Government

An unnamed government entity associated with the United Arab Emirates U.A.E. was targeted by a likely Iranian threat actor to breach the victim's Microsoft Exchange Server with a "simple yet effective" backdoor dubbed PowerExchange. According to a new report from Fortinet FortiGuard Labs, the...

Researchers Detail PureCrypter Loader Cyber Criminals Using to Distribute Malware

Cybersecurity researchers have detailed the workings of a fully-featured malware loader dubbed PureCrypter that's being purchased by cyber criminals to deliver remote access trojans RATs and information stealers. "The loader is a .NET executable obfuscated with SmartAssembly and makes use of...

Analyzing Dark Crystal RAT, a C# Backdoor

The FireEye Mandiant Threat Intelligence Team helps protect our customers by tracking cyber attackers and the malware they use. The FLARE Team helps augment our threat intelligence by reverse engineering malware samples. Recently, FLARE worked on a new C variant of Dark Crystal RAT DCRat that the...