Backdoored 3CXDesktopApp Installer Used in Active Threat Campaign

Emergent threats evolve quickly. We will update this blog with new information as it comes to light and we are able to verify it. Erick Galinkin, Ted Samuels, Zach Dayton, Eoin Miller, Caitlin Condon, Stephen Fewer, Spencer McIntyre, and Christiaan Beek all contributed to this blog. On Wednesday,...

NimPlant - A Light-Weight First-Stage C2 Implant Written In Nim

ByCas van Cooten @chvancooten, with special thanks to some awesome folks: Fabian Mosch @S3cur3Th1sSh1t for sharing dynamic invocation implementation in Nim and the Ekko sleep mask function snovvcrash @snovvcrash for adding the initial version of execute-assembly & self-deleting implant option...

BianLian ransomware ramps up data-leak extortion and improves operational security

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary BianLian ransomware group is ramping up data-leak extortion to extract payments, using similar tactics & a custom backdoor, and bringing 30 new C2 servers online monthly. To receive real-time threat...

SYS01stealer: New Threat Using Facebook Ads to Target Critical Infrastructure Firms

Cybersecurity researchers have discovered a new information stealer dubbed SYS01stealer targeting critical government infrastructure employees, manufacturing companies, and other sectors since November 2022. "The threat actors behind the campaign are targeting Facebook business accounts by using...

SysUpdate Malware Strikes Again with Linux Version and New Evasion Tactics

The threat actor known as Lucky Mouse has developed a Linux version of a malware toolkit called SysUpdate, expanding on its ability to target devices running the operating system. The oldest version of the updated artifact dates back to July 2022, with the malware incorporating new features...

Gmailc2 - A Fully Undetectable C2 Server That Communicates Via Google SMTP To Evade Antivirus Protections And Network Traffic Restrictions

A Fully Undetectable C2 Server That Communicates Via Google SMTP to evade Antivirus Protections and Network Traffic Restrictions Note: This RAT communicates Via Gmail SMTP or u can use any other smtps as well but Gmail SMTP is valid because most of the companies block unknown traffic so gmail...

Threat Actors Adopt Havoc Framework for Post-Exploitation in Targeted Attacks

An open source command-and-control C2 framework known as Havoc is being adopted by threat actors as an alternative to other well-known legitimate toolkits like Cobalt Strike, Sliver, and Brute Ratel. Cybersecurity firm Zscaler said it observed a new campaign in the beginning of January 2023...

MyloBot Botnet Spreading Rapidly Worldwide: Infecting Over 50,000 Devices Daily

A sophisticated botnet known as MyloBot has compromised thousands of systems, with most of them located in India, the U.S., Indonesia, and Iran. That's according to new findings from BitSight, which said it's "currently seeing more than 50,000 unique infected systems every day," down from a high ...

Researchers Discover Numerous Samples of Information Stealer 'Stealc' in the Wild

A new information stealer called Stealc that's being advertised on the dark web could emerge as a worthy competitor to other malware of its ilk. "The threat actor presents Stealc as a fully featured and ready-to-use stealer, whose development relied on Vidar, Raccoon, Mars, and RedLine stealers,"...

Researchers Warn of ReverseRAT Backdoor Targeting Indian Government Agencies

A spear-phishing campaign targeting Indian government entities aims to deploy an updated version of a backdoor called ReverseRAT. Cybersecurity firm ThreatMon attributed the activity to a threat actor tracked as SideCopy. SideCopy is a threat group of Pakistani origin that shares overlaps with...

Armenian Entities Hit by New Version of OxtaRAT Spying Tool

Entities in Armenia have come under a cyber attack using an updated version of a backdoor called OxtaRAT that allows remote access and desktop surveillance. "The tool capabilities include searching for and exfiltrating files from the infected machine, recording the video from the web camera and...

New Threat Actor WIP26 Targeting Telecom Service Providers in the Middle East

Telecommunication service providers in the Middle East are being targeted by a previously undocumented threat actor as part of a suspected intelligence gathering mission. Cybersecurity firms SentinelOne and QGroup are tracking the activity cluster under the former's work-in-progress moniker WIP26...

Hackers Exploit Vulnerabilities in Sunlogin to Deploy Sliver C2 Framework

Threat actors are leveraging known flaws in Sunlogin software to deploy the Sliver command-and-control C2 framework for carrying out post-exploitation activities. The findings come from AhnLab Security Emergency response Center ASEC, which found that security vulnerabilities in Sunlogin, a remote...

PY#RATION: New Python-based RAT Uses WebSocket for C2 and Data Exfiltration

Cybersecurity researchers have unearthed a new attack campaign that leverages a Python-based remote access trojan RAT to gain control over compromised systems since at least August 2022. "This malware is unique in its utilization of WebSockets to avoid detection and for both command-and-control C...

PY#RATION: New Python-based RAT Uses WebSocket for C2 and Data Exfiltration

Cybersecurity researchers have unearthed a new attack campaign that leverages a Python-based remote access trojan RAT to gain control over compromised systems since at least August 2022. "This malware is unique in its utilization of WebSockets to avoid detection and for both command-and-control C...

Threat Actors Turn to Sliver as Open Source Alternative to Popular C2 Frameworks

The legitimate command-and-control C2 framework known as Sliver is gaining more traction from threat actors as it emerges as an open source alternative to Cobalt Strike and Metasploit. The findings come from Cybereason, which detailed its inner workings in an exhaustive analysis last week. Sliver...

Dark Pink APT Group Targets Governments and Military in APAC Region

Government and military organizations in the Asia-Pacific region are being targeted by a previously unknown advanced persistent threat APT actor, per latest research conducted by Albert Priego of Group-IB The Singapore-headquartered company, in a report shared with The Hacker News, said it's...

The Evolving Tactics of Vidar Stealer: From Phishing Emails to Social Media

The notorious information-stealer known as Vidar is continuing to leverage popular social media services such as TikTok, Telegram, Steam, and Mastodon as an intermediate command-and-control C2 server. "When a user creates an account on an online platform, a unique account page that can be accesse...

Raspberry Robin Worm Evolves to Attack Financial and Insurance Sectors in Europe

Financial and insurance sectors in Europe have been targeted by the Raspberry Robin worm, as the malware continues to evolve its post-exploitation capabilities while remaining under the radar. "What is unique about the malware is that it is heavily obfuscated and highly complex to statically...

The vulnerability of the FsCreateDir function in the Ajax web interface for managing WLAN client software Hirschmann BAT-C2 allows a hacker to execute arbitrary commands.

The vulnerability of the FsCreateDir function in the Ajax web interface for managing WLAN client software Hirschmann BAT-C2 is related to insufficient checking of arguments passed in the command. Exploiting this vulnerability allows a malicious actor to execute arbitrary commands using the dir...