Attackers Using Obfuscation Tools to Deliver Multi-Stage Malware via Invoice Phishing

Cybersecurity researchers have discovered an intricate multi-stage attack that leverages invoice-themed phishing decoys to deliver a wide range of malware such as Venom RAT, Remcos RAT, XWorm, NanoCore RAT, and a stealer that targets crypto wallets. The email messages come with Scalable Vector...

TargetCompany Ransomware’s FUD Obfuscation Maneuvers

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary The TargetCompany ransomware employs a combination of its proprietary variant and the BatCloak obfuscator engine, acclaimed for its full undetectability FUD capabilities. Accompanying this fusion is the...

TargetCompany Ransomware Abuses FUD Obfuscator Packers

In this entry, we detail our analysis of how the TargetCompany ransomware abused an iteration of fully undetectable FUD obfuscator engine BatCloak to infect vulnerable systems...

SeroXen Incorporates Latest BatCloak Engine Iteration

We looked into the documented behavior of SeroXen malware and noted the inclusion of the latest iteration of the batch obfuscation engine BatCloak to generate a fully undetectable FUD .bat loader. This is the second part of a three-part series documenting the abuse of BatCloak’s evasion...

Cybercriminals Using Powerful BatCloak Engine to Make Malware Fully Undetectable

A fully undetectable FUD malware obfuscation engine named BatCloak is being used to deploy various malware strains since September 2022, while persistently evading antivirus detection. The samples grant "threat actors the ability to load numerous malware families and exploits with ease through...

Cybercriminals Using Powerful BatCloak Engine to Make Malware Fully Undetectable

A fully undetectable FUD malware obfuscation engine named BatCloak is being used to deploy various malware strains since September 2022, while persistently evading antivirus detection. The samples grant "threat actors the ability to load numerous malware families and exploits with ease through...

Analyzing the FUD Malware Obfuscation Engine BatCloak

We look into BatCloak engine, its modular integration into modern malware, proliferation mechanisms, and interoperability implications as malicious actors take advantage of its fully undetectable FUD capabilities...