Agent Tesla | Breaking Cybersecurity News | The Hacker News

A new variant of the  Agent Tesla  malware has been observed delivered via a lure file with the  ZPAQ compression format  to harvest data from several email clients and nearly 40 web browsers. "ZPAQ is a file compression format that offers a better compression ratio and journaling function compared to widely used formats like ZIP and RAR," G Data malware analyst Anna Lvova  said  in a Monday analysis. "That means that ZPAQ archives can be smaller, saving storage space and bandwidth when transferring files. However, ZPAQ has the biggest disadvantage: limited software support." First appearing in 2014, Agent Tesla is a  keylogger  and  remote access trojan  (RAT) written in .NET that's  offered  to other threat actors as part of a malware-as-a-service (MaaS) model. It's often used as a first-stage payload, providing remote access to a compromised system and utilized to download more sophisticated second-stage tools such as ransomware. Agent Tesla is typ

The Iranian threat actor tracked as APT34 has been linked to a new phishing attack that leads to the deployment of a variant of a backdoor called  SideTwist . "APT34 has a high level of attack technology, can design different intrusion methods for different types of targets, and has supply chain attack capability," NSFOCUS Security Labs  said  in a report published last week. APT34, also known by the names Cobalt Gypsy, Hazel Sandstorm (formerly Europium), Helix Kitten, and OilRig, has a  track record  of targeting telecommunications, government, defense, oil and financial services verticals in the Middle East since at least 2014 via spear-phishing lures that culminate in the deployment of various backdoors. One of the key traits of the hacking outfit is its ability to create new and updated tools to minimize the odds of detection and gain a foothold on compromised hosts for extended periods of time. SideTwist was  first documented  as used by APT34 in April 2021, with Check Poin

Wing Security recently announced that basic third-party risk assessment is  now available as a free product . But it raises the questions of how SaaS is connected to third-party risk management (TPRM) and what companies should do to ensure a proper SaaS-TPRM process is in place. In this article we will share 5 tips to manage the third-party risks associated with SaaS, but first...  What exactly is Third-Party Risk Management in SaaS? SaaS is rapidly growing, offering businesses convenience, swift implementations, and valuable opportunities. However, this growth introduces a security challenge where risks arise from the interconnected nature of SaaS supply chains. It is clear that before onboarding a new contractor or vendor, we need due diligence, security checks, and referrals. However, we now understand that in the SaaS domain, applications are, in fact, the go-to vendor of choice.  Let's explain: Any employee can very easily connect SaaS vendors to company data, granting them pe

Cybersecurity researchers have discovered an ongoing phishing campaign that makes use of a unique attack chain to deliver the  XWorm malware  on targeted systems. Securonix, which is tracking the activity cluster under the name  MEME#4CHAN , said some of the attacks have primarily targeted manufacturing firms and healthcare clinics located in Germany. "The attack campaign has been leveraging rather unusual meme-filled PowerShell code, followed by a heavily obfuscated XWorm payload to infect its victims," security researchers Den Iuzvyk, Tim Peck, and Oleg Kolesnikov said in a new analysis shared with The Hacker News. The report builds on  recent findings  from Elastic Security Labs, which revealed the threat actor's reservation-themed lures to deceive victims into opening malicious documents capable of delivering XWorm and Agent Tesla payloads. The attacks begin with phishing attacks to distribute decoy Microsoft Word documents that, instead of using macros, weapon

A recently discovered malware builder called Quantum Builder is being used to deliver the Agent Tesla remote access trojan (RAT). "This campaign features enhancements and a shift toward LNK (Windows shortcut) files when compared to similar attacks in the past," Zscaler ThreatLabz researchers Niraj Shivtarkar and Avinash Kumar  said  in a Tuesday write-up. Sold on the dark web for €189 a month,  Quantum Builder  is a customizable tool for generating malicious shortcut files as well as HTA, ISO, and PowerShell payloads to deliver next-stage malware on the targeted machines, in this case  Agent Tesla . The multi-stage attack chain starts with a spear-phishing email containing a GZIP archive attachment that includes a shortcut designed to execute PowerShell code responsible for launching a remote HTML application (HTA) using  MSHTA . The phishing emails purport to be an order confirmation message from a Chinese supplier of lump and rock sugar, with the LNK file masqueradin

Palo Alto Networks Unit 42 has detailed the inner workings of a malware called  OriginLogger , which has been touted as a successor to the widely used information stealer and remote access trojan (RAT) known as  Agent Tesla . A .NET based keylogger and remote access, Agent Tesla has had a long-standing presence in the threat landscape, allowing malicious actors to gain remote access to targeted systems and beacon sensitive information to an actor-controlled domain. Known to be used in the wild since 2014, it's advertised for sale on dark web forums and is generally distributed through malicious spam emails as an attachment. In February 2021, cybersecurity firm Sophos  disclosed two new variants  of the commodity malware (version 2 and 3) that featured capabilities to steal credentials from web browsers, email apps, and VPN clients, as well as use Telegram API for command-and-control. Now according to Unit 42 researcher Jeff White, what has been tagged as Agent Tesla version 3

Security researchers on Tuesday uncovered new delivery and evasion techniques adopted by Agent Tesla remote access trojan (RAT) to get around defense barriers and monitor its victims. Typically spread through social engineering lures, the Windows spyware not only now targets Microsoft's Antimalware Scan Interface ( AMSI ) in an attempt to defeat endpoint protection software, it also employs a multi-stage installation process and makes use of Tor and Telegram messaging API to communicate with a command-and-control (C2) server. Cybersecurity firm Sophos , which observed two versions of Agent Tesla — version 2 and version 3 — currently in the wild, said the changes are yet another sign of Agent Tesla's constant evolution designed to make a sandbox and static analysis more difficult. "The differences we see between v2 and v3 of Agent Tesla appear to be focused on improving the success rate of the malware against sandbox defenses and malware scanners, and on providing more