Qakbot | Breaking Cybersecurity News | The Hacker News

Despite the disruption to its infrastructure, the threat actors behind the QakBot malware have been linked to an ongoing phishing campaign since early August 2023 that led to the delivery of Ransom Knight (aka Cyclops) ransomware and Remcos RAT. This indicates that "the law enforcement operation may not have impacted Qakbot operators' spam delivery infrastructure but rather only their command-and-control (C2) servers," Cisco Talos researcher Guilherme Venere  said  in a new report published today. The activity has been attributed with moderate confidence by the cybersecurity firm to QakBot affiliates. There is no evidence to date that the threat actors have resumed distributing the malware loader itself post-infrastructure takedown. QakBot, also called QBot and Pinkslipbot, originated as a Windows-based banking trojan in 2007 and subsequently developed capabilities to deliver additional payloads, including ransomware. In late August 2023, the notorious malware operation was dealt

A coordinated law enforcement effort codenamed  Operation Duck Hunt  has felled  QakBot , a notorious Windows malware family that's estimated to have compromised over 700,000 computers globally and facilitated financial fraud as well as ransomware. To that end, the U.S. Justice Department (DoJ)  said  the malware is "being deleted from victim computers, preventing it from doing any more harm," adding it seized more than $8.6 million in cryptocurrency in illicit profits. The cross-border exercise involved the participation of France, Germany, Latvia, Romania, the Netherlands, the U.K., and the U.S., alongside technical assistance from cybersecurity company Zscaler. The dismantling has been hailed as "the largest U.S.-led financial and technical disruption of a botnet infrastructure leveraged by cybercriminals." No arrests were announced. QakBot, also known as QBot and Pinkslipbot, started its life as a banking trojan in 2007 before morphing into a general-pu

The operators associated with the QakBot (aka QBot) malware have set up 15 new command-and-control (C2) servers as of late June 2023. The findings are a continuation of the malware's infrastructure analysis from Team Cymru, and arrive a little over two months after Lumen Black Lotus Labs  revealed  that 25% of its C2 servers are only active for a single day. "QakBot has a history of taking an extended break each summer before returning sometime in September, with this year's spamming activities ceasing around 22 June 2023," the cybersecurity firm  said . "But are the QakBot operators actually on vacation when they aren't spamming, or is this 'break' a time for them to refine and update their infrastructure and tools?" QakBot's C2 network, like in the case of Emotet and IcedID, is  characterized  by a tiered architecture in which C2 nodes communicate with upstream Tier 2 (T2) C2 nodes hosted on VPS providers geolocated in Russia. A majo

An analysis of the "evasive and tenacious" malware known as QBot has revealed that 25% of its command-and-control (C2) servers are merely active for a single day. What's more, 50% of the servers don't remain active for more than a week, indicating the use of an adaptable and dynamic  C2 infrastructure , Lumen Black Lotus Labs said in a report shared with The Hacker News. "This botnet has adapted techniques to conceal its infrastructure in residential IP space and infected web servers, as opposed to hiding in a network of hosted virtual private servers (VPSs)," security researchers Chris Formosa and Steve Rudd said. QBot , also called QakBot and Pinkslipbot, is a persistent and potent threat that started off as a banking trojan before evolving into a downloader for other payloads, including ransomware. Its origins go back as far as 2007. The malware arrives on victims' devices via spear-phishing emails, which either directly incorporate lure files o

A recent IcedID malware attack enabled the threat actor to compromise the Active Directory domain of an unnamed target less than 24 hours after gaining initial access, while also borrowing techniques from other groups like Conti to meet its goals. "Throughout the attack, the attacker followed a routine of recon commands, credential theft, lateral movement by abusing Windows protocols, and executing Cobalt Strike on the newly compromised host," Cybereason researchers  said  in a report published this week. IcedID , also known by the name BokBot, started its life as a banking trojan in 2017 before evolving into a  dropper for other malware , joining the likes of  Emotet ,  TrickBot ,  Qakbot ,  Bumblebee , and  Raspberry Robin . Attacks involving the delivery of IcedID have  leveraged a variety of methods , especially in the wake of  Microsoft's decision to block macros  from Office files downloaded from the web. The intrusion detailed by Cybereason is no different in

Phishing campaigns involving the  Qakbot malware  are using Scalable Vector Graphics ( SVG ) images embedded in HTML email attachments. The new distribution method was spotted by Cisco Talos, which  said  it identified fraudulent email messages featuring HTML attachments with encoded SVG images that incorporate  HTML script tags . HTML smuggling is a  technique  that relies on using legitimate features of HTML and JavaScript to run encoded malicious code contained within the lure attachment and assemble the payload on a victim's machine as opposed to making an HTTP request to fetch the malware from a remote server. In other words, the idea is to evade email gateways by storing a binary in the form of a JavaScript code that's decoded and downloaded when opened via a web browser. The attack chain spotted by the cybersecurity company concerns a JavaScript that's smuggled inside of the SVG image and executed when the unsuspecting email recipient launches the HTML attachme

Companies based in the U.S. have been at the receiving end of an "aggressive" Qakbot malware campaign that leads to Black Basta ransomware infections on compromised networks. "In this latest campaign, the Black Basta ransomware gang is using QakBot malware to create an initial point of entry and move laterally within an organization's network," Cybereason researchers Joakim Kandefelt and Danielle Frankel  said  in a report shared with The Hacker News. Black Basta, which emerged in April 2022, follows the tried-and-tested approach of double extortion to steal sensitive data from targeted companies and use it as a leverage to extort cryptocurrency payments by threatening to release the stolen information. This is not the first time the ransomware crew has been observed using Qakbot (aka QBot, QuackBot, or Pinkslipbot). Last month, Trend Micro  disclosed  similar attacks that entailed the use of Qakbot to deliver the  Brute Ratel C4  framework, which, in turn,

The Ursnif malware has become the latest malware to shed its roots as a banking trojan to revamp itself into a generic backdoor capable of delivering next-stage payloads, joining the likes of Emotet, Qakbot, and TrickBot. "This is a significant shift from the malware's original purpose to enable banking fraud, but is consistent with the broader threat landscape," Mandiant researchers Sandor Nemes, Sulian Lebegue, and Jessa Valdez  disclosed  in a Wednesday analysis. The refreshed and refactored variant, first spotted by the Google-owned threat intelligence firm in the wild on June 23, 2022, has been codenamed LDR4, in what's being seen as an attempt to lay the groundwork for potential ransomware and data theft extortion operations. Ursnif, also called Gozi or ISFB, is one of the oldest banker malware families, with  the earliest documented attacks  going as far back as 2007. Check Point, in August 2020, mapped the " divergent evolution of Gozi " over th

The operators behind the Qakbot malware are transforming their delivery vectors in an attempt to sidestep detection. "Most recently, threat actors have transformed their techniques to evade detection by using ZIP file extensions, enticing file names with common formats, and Excel (XLM) 4.0 to trick victims into downloading malicious attachments that install Qakbot," Zscaler Threatlabz researchers Tarun Dewan and Aditya Sharma  said . Other methods adopted by the group include code obfuscation, introducing new layers in the attack chain from initial compromise to execution, and using multiple URLs as well as unknown file extensions (e.g., .OCX, .ooccxx, .dat, or .gyp) to deliver the payload. Also called QBot, QuackBot, or Pinkslipbot, Qakbot has been a  recurring threat  since late 2007, evolving from its initial days as a banking trojan to a modular information stealer capable of deploying next-stage payloads such as  ransomware . "Qakbot is a flexible post-exploi

Infection chains associated with the multi-purpose Qakbot malware have been broken down into "distinct building blocks," an effort that Microsoft said will help to proactively detect and block the threat in an effective manner. The Microsoft 365 Defender Threat Intelligence Team  dubbed   Qakbot a "customizable chameleon that adapts to suit the needs of the multiple threat actor groups that utilize it." Qakbot  is believed to be the creation of a financially motivated cybercriminal threat group known as  Gold Lagoon . It is a prevalent information-stealing malware that, in recent years, has become a precursor to many critical and widespread ransomware attacks, offering a malware installation-as-a-service that enables many campaigns. First discovered in 2007, the modular malware — like  TrickBot  — has  evolved  from its early roots as a banking trojan to become a Swiss Army knife capable of data exfiltration and acting as a delivery mechanism for the second st

A new spam email campaign has emerged as a conduit for a previously undocumented malware loader that enables the attackers to gain an initial foothold into enterprise networks and drop malicious payloads on compromised systems. "These infections are also used to facilitate the delivery of additional malware such as Qakbot and Cobalt Strike, two of the most common threats regularly observed targeting organizations around the world,"  said  researchers with Cisco Talos in a technical write-up. The malspam campaign is believed to have commenced in mid-September 2021 via laced Microsoft Office documents that, when opened, triggers an infection chain that leads to the machines getting infected with a malware dubbed SQUIRRELWAFFLE . Mirroring a technique that's consistent with other phishing attacks of this kind, the latest operation leverages stolen email threads to give it a veil of legitimacy and trick unsuspecting users into opening the attachments. What's more, t