A New Face of AsyncRAT Utilizes WSF Scripts to Spread

Summary: AsyncRAT is a remote access trojan RAT malware known for stealing credentials and executing various malicious activities since 2019. Its recent variant, distributed through WSF script files, employs sophisticated fileless techniques, emphasizing the importance of user caution and robust...

HotRat: New Variant of AsyncRAT Malware Spreading Through Pirated Software

A new variant of AsyncRAT malware dubbed HotRat is being distributed via free, pirated versions of popular software and utilities such as video games, image and sound editing software, and Microsoft Office. "HotRat malware equips attackers with a wide array of capabilities, such as stealing login...

Blind Eagle Cyber Espionage Group Strikes Again: New Attack Chain Uncovered

The cyber espionage actor tracked as Blind Eagle has been linked to a new multi-stage attack chain that leads to the deployment of the NjRAT remote access trojan on compromised systems. "The group is known for using a variety of sophisticated attack techniques, including custom malware, social...

Post-Macro World Sees Rise in Microsoft OneNote Documents Delivering Malware

In a continuing sign that threat actors are adapting well to a post-macro world, it has emerged that the use of Microsoft OneNote documents to deliver malware via phishing attacks is on the rise. Some of the notable malware families that are being distributed using this method include AsyncRAT,...

Prynt Stealer Contains a Backdoor to Steal Victims' Data Stolen by Other Cybercriminals

Researchers discovered a private Telegram channel-based backdoor in the information stealing malware, dubbed Prynt Stealer, which its developer added with the intention of secretly stealing a copy of victims' exfiltrated data when used by other cybercriminals. "While this untrustworthy behavior i...

AsyncRAT C2 Framework: Overview, Technical Analysis & Detection

In this blog we describe the AsyncRAT C2 command & control Framework, which allows attackers to remotely monitor and control other computers over a secure encrypted link. We provide an overview of this threat, a technical analysis, and a method of detecting the malware using Qualys Multi-Vector...

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...

ASyncRat surpasses Dridex, TrickBot and Emotet to become dominant email threat

Earlier this year Malwarebytes released its 2022 Threat Review, a review of the most important threats and cybersecurity trends of 2021, and what they could mean for 2022. Among other things it covers the years alarming rebound in malware detections, and a significant shift in the balance of emai...

Threat Spotlight: AsyncRAT campaigns feature new version of 3LOSH crypter

By Edmund Brumaghin, with contributions from Alex Karkins. Ongoing malware distribution campaigns are using ISO disk images to deliver AsyncRAT, LimeRAT and other commodity malware to victims.The infections leverage process injection to evade detection by endpoint security software.These...

Experts Warn of Hacking Group Targeting Aviation and Defense Sectors

Entities in the aviation, aerospace, transportation, manufacturing, and defense industries have been targeted by a persistent threat group since at least 2017 as part of a string of spear-phishing campaigns mounted to deliver a variety of remote access trojans RATs on compromised systems. The use...

Hackers Using New Evasive Technique to Deliver AsyncRAT Malware

A new, sophisticated phishing attack has been observed delivering the AsyncRAT trojan as part of a malware campaign that's believed to have commenced in September 2021. "Through a simple email phishing tactic with an HTML attachment, threat attackers are delivering AsyncRAT a remote access trojan...

Unusual ‘Donald Trump’ Packer Malware Delivers RATs, Infostealers

A new .NET malware packer being used to deliver a variety of remote access trojans RATs and infostealers has a fixed password named after Donald Trump, giving the new find its name, “DTPacker.” DTPacker was discovered by researchers at Proofpoint who, since 2020, have observed it being used by...

Amazon, Azure Clouds Host RAT-ty Trio in Infostealing Campaign

Cyberattackers are abusing Amazon Web Services AWS and Azure Cloud services to deliver a trio of remote access trojans RATs, researchers warned – all aimed at hoovering up sensitive information from target users. According to an analysis from Cisco Talos, threat actors have been pushing out...

Hackers Use Cloud Services to Distribute Nanocore, Netwire, and AsyncRAT Malware

Threat actors are actively incorporating public cloud services from Amazon and Microsoft into their malicious campaigns to deliver commodity remote access trojans RATs such as Nanocore, Netwire, and AsyncRAT to siphon sensitive information from compromised systems. The spear-phishing attacks, whi...

Hackers Increasingly Using HTML Smuggling in Malware and Phishing Attacks

Threat actors are increasingly banking on the technique of HTML smuggling in phishing campaigns as a means to gain initial access and deploy an array of threats, including banking malware, remote administration trojans RATs, and ransomware payloads. Microsoft 365 Defender Threat Intelligence Team...

HTML smuggling surges: Highly evasive loader technique increasingly used in banking malware, targeted attacks

HTML smuggling, a highly evasive malware delivery technique that leverages legitimate HTML5 and JavaScript features, is increasingly used in email campaigns that deploy banking malware, remote access Trojans RATs, and other payloads related to targeted attacks. Notably, this technique was observe...

Malware Attack on Aviation Sector Uncovered After Going Unnoticed for 2 Years

A targeted phishing campaign aimed at the aviation industry for two years may be spearheaded by a threat actor operating out of Nigeria, highlighting how attackers can carry out small-scale cyber offensives for extended periods of time while staying under the radar. Cisco Talos dubbed the malware...

Fresh Loader Targets Aviation Victims with Spy RATs

A cyberattack campaign that goes after aviation targets has been uncovered, which is spreading remote access trojan RAT malware bent on cyber-espionage. Researchers from Microsoft said this week on Twitter that spear-phishing emails are the main attack vector. Individuals in the aerospace and...

Experts Uncover Malware Attacks Against Colombian Government and Companies

Cybersecurity researchers took the wraps off an ongoing surveillance campaign directed against Colombian government institutions and private companies in the energy and metallurgical industries. In a report published by ESET on Tuesday, the Slovak internet security company said the attacks — dubb...

Threat Analysis Unit (TAU) Threat Intelligence Notification: AsyncRAT

AsyncRAT is a Remote Access Tool RAT designed to remotely monitor and control other computers through a secure encrypted connection. It is an open source remote administration tool, however, it could also be used maliciously because it provides functionality such as keylogger, remote desktop...