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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 or

A previously unknown advanced persistent threat (APT) is targeting iOS devices as part of a sophisticated and long-running mobile campaign dubbed  Operation Triangulation  that began in 2019. "The targets are infected using zero-click exploits via the iMessage platform, and the malware runs with root privileges, gaining complete control over the device and user data," Kaspersky  said . The Russian cybersecurity company said it discovered traces of compromise after creating offline backups of the targeted devices. The attack chain begins with the iOS device receiving a message via iMessage that contains an attachment bearing the exploit. The exploit is said to be  zero-click , meaning the receipt of the message triggers the vulnerability without requiring any user interaction in order to achieve code execution. It's also configured to retrieve additional payloads for privilege escalation and drop a final stage malware from a remote server that Kaspersky described as

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Cybersecurity researchers have offered a closer look at the RokRAT remote access trojan that's employed by the North Korean state-sponsored actor known as  ScarCruft . "RokRAT is a sophisticated remote access trojan (RAT) that has been observed as a critical component within the attack chain, enabling the threat actors to gain unauthorized access, exfiltrate sensitive information, and potentially maintain persistent control over compromised systems," ThreatMon  said . ScarCruft , active since at least 2012, is a  cyber espionage group  that operates on behalf of the North Korean government, exclusively focusing on targets in its southern counterpart. The group is believed to be a subordinate element within North Korea's Ministry of State Security (MSS). Attack chains mounted by the group have leaned heavily on social engineering to spear-phish victims and deliver payloads onto target networks. This includes exploiting vulnerabilities in Hancom's Hangul Word

Enterprise security firm Barracuda on Tuesday disclosed that a recently patched zero-day flaw in its Email Security Gateway (ESG) appliances had been abused by threat actors since October 2022 to backdoor the devices. The latest  findings  show that the  critical vulnerability , tracked as  CVE-2023-2868  (CVSS score: N/A), has been actively exploited for at least seven months prior to its discovery. The flaw, which Barracuda identified on May 19, 2023, affects versions 5.1.3.001 through 9.2.0.006 and could allow a remote attacker to achieve code execution on susceptible installations. Patches were released by Barracuda on May 20 and May 21. "CVE-2023-2868 was utilized to obtain unauthorized access to a subset of ESG appliances," the network and email security company  said  in an updated advisory. "Malware was identified on a subset of appliances allowing for persistent backdoor access. Evidence of data exfiltration was identified on a subset of impacted appliance

A new open source remote access trojan (RAT) called  DogeRAT  targets Android users primarily located in India as part of a sophisticated malware campaign. The malware is distributed via social media and messaging platforms under the guise of legitimate applications like Opera Mini, OpenAI ChatGPT, and Premium versions of YouTube, Netflix, and Instagram. "Once installed on a victim's device, the malware gains unauthorized access to sensitive data, including contacts, messages, and banking credentials," cybersecurity firm CloudSEK  said  in a Monday report. "It can also take control of the infected device, enabling malicious actions such as sending spam messages, making unauthorized payments, modifying files, and even remotely capturing photos through the device's cameras." DogeRAT, like many other malware-as-a-service ( MaaS ) offerings, is promoted by its India-based developer through a Telegram channel that has more than 2,100 subscribers since it wa

A crypter (alternatively spelled cryptor) malware dubbed  AceCryptor  has been used to pack numerous strains of malware since 2016. Slovak cybersecurity firm ESET  said  it identified over 240,000 detections of the crypter in its telemetry in 2021 and 2022. This amounts to more than 10,000 hits per month. Some of the prominent malware families contained within AceCryptor are SmokeLoader, RedLine Stealer, RanumBot, Raccoon Stealer, Stop ransomware, and Amadey, among others. The countries with the most detections include Peru, Egypt, Thailand, Indonesia, Turkey, Brazil, Mexico, South Africa, Poland, and India. AceCryptor was  first highlighted  by Avast in August 2022, detailing the use of the malware to distribute Stop ransomware and RedLine Stealer on Discord in the form of 7-Zip files. Crypters  are similar to packers, but instead of using compression, they are known to obfuscate the malware code with encryption to make detection and reverse engineering a lot more challenging.

Linux routers in Japan are the target of a new Golang remote access trojan (RAT) called  GobRAT . "Initially, the attacker targets a router whose WEBUI is open to the public, executes scripts possibly by using vulnerabilities, and finally infects the GobRAT," the JPCERT Coordination Center (JPCERT/CC)  said  in a report published today. The compromise of an internet-exposed router is followed by the deployment of a loader script that acts as a conduit for delivering GobRAT, which, when launched, masquerades as the Apache daemon process (apached) to evade detection. The loader is also equipped to disable firewalls, establish persistence using the cron job scheduler, and register an SSH public key in the  .ssh/authorized_keys file  for remote access. GobRAT, for its part, communicates with a remote server via the Transport Layer Security ( TLS ) protocol to receive as many as 22 different encrypted commands for execution. Some of the major commands are as follows - Obt

A new strain of malicious software that's engineered to penetrate and disrupt critical systems in industrial environments has been unearthed. Google-owned threat intelligence firm Mandiant dubbed the malware  COSMICENERGY , adding it was uploaded to the VirusTotal public malware scanning utility in December 2021 by a submitter in Russia. There is no evidence that it has been put to use in the wild. "The malware is designed to cause electric power disruption by interacting with IEC 60870-5-104 (IEC-104) devices, such as remote terminal units ( RTUs ), that are commonly leveraged in electric transmission and distribution operations in Europe, the Middle East, and Asia," the company  said . COSMICENERGY is the latest addition to  specialized   malware  like Stuxnet, Havex, Triton, IRONGATE, BlackEnergy2, Industroyer, and PIPEDREAM, which are capable of sabotaging critical systems and wreaking havoc. Mandiant said that there are circumstantial links that it may have bee

A Brazilian threat actor is targeting more than 30 Portuguese financial institutions with information-stealing malware as part of a long-running campaign that commenced in 2021. "The attackers can steal credentials and exfiltrate users' data and personal information, which can be leveraged for malicious activities beyond financial gain," SentinelOne researchers Aleksandar Milenkoski and Tom Hegel  said  in a new report shared with The Hacker News. The cybersecurity firm, which began tracking "Operation Magalenha" earlier this year, said the intrusions culminate in the deployment of two variants of a backdoor called  PeepingTitle  so as to "maximize attack potency." The links to Brazil stem from the use of the Brazilian-Portuguese language within the detected artifacts as well as source code overlaps with another banking trojan known as  Maxtrilha , which was first disclosed in September 2021. PeepingTitle, like Maxtrilha, is written in the Delphi

The threat actors behind the nascent  Buhti  ransomware have eschewed their custom payload in favor of leaked LockBit and Babuk ransomware families to strike Windows and Linux systems. "While the group doesn't develop its own ransomware, it does utilize what appears to be one custom-developed tool, an information stealer designed to search for and archive specified file types," Symantec  said  in a report shared with The Hacker News. The cybersecurity firm is tracking the cybercrime group under the name  Blacktail . Buhti was first highlighted by Palo Alto Networks Unit 42 in February 2023,  describing  it as a Golang ransomware targeting the Linux platform. Later that same month, Bitdefender revealed the use of a Windows variant that was deployed against Zoho ManageEngine products that were vulnerable to critical remote code execution flaws ( CVE-2022-47966 ). The operators have since been observed swiftly exploiting other severe bugs impacting IBM's Aspera Fasp

The Iranian threat actor known as  Agrius  is leveraging a new ransomware strain called Moneybird in its attacks targeting Israeli organizations. Agrius, also known as Pink Sandstorm (formerly Americium), has a  track record  of staging destructive data-wiping attacks aimed at Israel under the guise of ransomware infections. Microsoft has attributed the threat actor to Iran's Ministry of Intelligence and Security (MOIS), which also operates  MuddyWater . It's known to be active since at least December 2020. In December 2022, the hacking crew was  attributed  to a set of attempted disruptive intrusions that were directed against diamond industries in South Africa, Israel, and Hong Kong. These attacks involved the use of a .NET-based wiper-turned-ransomware called  Apostle  and its successor known as Fantasy. Unlike Apostle, Moneybird is programmed in C++. "The use of a new ransomware, written in C++, is noteworthy, as it demonstrates the group's expanding capabil

Google has removed a screen recording app named "iRecorder - Screen Recorder" from the Play Store after it was found to sneak in information stealing capabilities nearly a year after the app was published as an innocuous app. The app (APK package name "com.tsoft.app.iscreenrecorder"), which accrued over 50,000 installations, was first uploaded on September 19, 2021. The malicious functionality is believed to have been introduced in version 1.3.8, which was released on August 24, 2022. "It is rare for a developer to upload a legitimate app, wait almost a year, and then update it with malicious code," ESET security researcher Lukáš Štefanko  said  in a technical report. "The malicious code that was added to the clean version of iRecorder is based on the open source  AhMyth  Android RAT (remote access trojan) and has been customized into what we named AhRat." iRecorder was  first flagged  as harboring the AhMyth trojan on October 28, 2022, by

The infamous Lazarus Group actor has been targeting vulnerable versions of Microsoft Internet Information Services ( IIS ) servers as an initial breach route to deploy malware on targeted systems. The findings come from the AhnLab Security Emergency response Center (ASEC), which detailed the advanced persistent threat's (APT) continued abuse of DLL side-loading techniques to run arbitrary payloads. "The threat actor places a malicious DLL (msvcr100.dll) in the same folder path as a normal application (Wordconv.exe) via the Windows IIS web server process, w3wp.exe," ASEC explained . "They then execute the normal application to initiate the execution of the malicious DLL." DLL side-loading , similar to DLL search-order hijacking, refers to the proxy execution of a rogue DLL via a benign binary planted in the same directory. Lazarus , a highly-capable and relentless nation-state group linked to North Korea, was most recently spotted leveraging the same t

The Computer Emergency Response Team of Ukraine (CERT-UA) has warned of cyber attacks targeting state bodies in the country as part of an espionage campaign. The  intrusion set , attributed to a threat actor tracked by the authority as UAC-0063 since 2021, leverages phishing lures to deploy a variety of malicious tools on infected systems. The origins of the hacking crew are presently unknown. In the attack chain described by the agency, the emails targeted an unspecified ministry and purported to be from the Embassy of Tajikistan in Ukraine. It's suspected that the messages were sent from a previously compromised mailbox. The emails come attached with a Microsoft Word document that, upon enabling macros, launches an encoded VBScript called HATVIBE, which is then used to drop additional malware. This includes a keylogger (LOGPIE), a Python-based backdoor capable of running commands sent from a remote server (CHERRYSPY), and a tool focused on exfiltrating files with specific e

Government and diplomatic entities in the Middle East and South Asia are the target of a new advanced persistent threat actor named  GoldenJackal . Russian cybersecurity firm Kaspersky, which has been  keeping tabs  on the group's activities since mid-2020, characterized the adversary as both capable and stealthy. The targeting scope of the campaign is focused on Afghanistan, Azerbaijan, Iran, Iraq, Pakistan, and Turkey, infecting victims with tailored malware that steals data, propagates across systems via removable drives, and conducts surveillance. GoldenJackal is suspected to have been active for at least four years, although little is known about the group. Kaspersky said it has been unable to determine its origin or affiliation with known threat actors, but the actor's modus operandi suggests an espionage motivation. What's more, the threat actor's attempts to maintain a low profile and disappear into the shadows bears all the hallmarks of a state-sponsored g

The North Korean advanced persistent threat (APT) group known as Kimsuky has been observed using a piece of custom malware called RandomQuery as part of a reconnaissance and information exfiltration operation. "Lately, Kimsuky has been consistently distributing custom malware as part of reconnaissance campaigns to enable subsequent attacks," SentinelOne researchers Aleksandar Milenkoski and Tom Hegel said in a report published today. The ongoing targeted campaign, per the cybersecurity firm, is primarily geared towards information services as well as organizations supporting human rights activists and North Korean defectors. Kimsuky, active since 2012, has exhibited targeting patterns that align with North Korea's operational mandates and priorities. The intelligence collection missions have involved the use of a diverse set of malware, including another reconnaissance program called ReconShark , as detailed by SentinelOne earlier this month. The latest activity

An unknown threat actor has been observed leveraging a malicious Windows kernel driver in attacks likely targeting the Middle East since at least May 2020. Fortinet Fortiguard Labs, which dubbed the artifact WINTAPIX (WinTapix.sys), attributed the malware with low confidence to an Iranian threat actor. "WinTapix.sys is essentially a loader," security researchers Geri Revay and Hossein Jazi said in a report published on Monday. "Thus, its primary purpose is to produce and execute the next stage of the attack. This is done using a shellcode." Samples and telemetry data analyzed by Fortinet show that the campaign's primary focus is on Saudi Arabia, Jordan, Qatar, and the United Arab Emirates. The activity has not been tied to a known threat actor or group. By using a malicious kernel mode driver, the idea is to subvert or disable security mechanisms and gain entrenched access to the targeted host. Such drivers run within the kernel memory and can, there

The identity of the second threat actor behind the Golden Chickens malware has been uncovered courtesy of a "fatal" operational security blunder, cybersecurity firm eSentire said. The individual in question, who lives in Bucharest, Romania, has been given the codename Jack. He is one of the two criminals operating an account on the Russian-language Exploit.in forum under the name "badbullzvenom," the other being " Chuck from Montreal ." eSentire characterized Jack as the true mastermind behind Golden Chickens. Evidence unearthed by the Canadian company shows that he is also listed as the owner of a vegetable and fruit import and export business. "Like 'Chuck from Montreal,' 'Jack' uses multiple aliases for the underground forums, social media, and Jabber accounts, and he too has gone to great lengths to disguise himself," eSentire researchers Joe Stewart and Keegan Keplinger said . "'Jack' has taken great pa