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The year begins with the number of new variants of malware that were discovered by various security researchers. The new variants are more complex, sophisticated and mostly undetectable. Two years back in 2012, the FBI warned us about the ' GameOver ' banking Trojan, a variant of Zeus financial malware that spreads via phishing emails. GameOver makes fraudulent transactions from your bank once installed in your system with the capability to conduct Distributed Denial of Service, or DDoS, attack using a botnet, which involves multiple computers flooding the financial institution's server with traffic in an effort to deny legitimate users access to the site. But that wasn't the end; a new variant of the same family of banking Trojan has been discovered by researchers that are being delivered by cyber criminals to users' machines, making it easier for the banking malware to evade detection and steal victim's banking credentials. Malcovery's Gary Warner explains ...

The North Korea-linked threat actor known as Kimsuky has distributed a previously undocumented backdoor codenamed HttpTroy as part of a likely spear-phishing attack targeting a single victim in South Korea. Gen Digital, which disclosed details of the activity, did not reveal any details on when the incident occurred, but noted that the phishing email contained a ZIP file ("250908_A_HK이노션_SecuwaySSL VPN Manager U100S 100user_견적서.zip"), which masqueraded as a VPN invoice to distribute malware capable of file transfer, capturing screenshots, and executing arbitrary commands. "The chain has three steps: a small dropper, a loader called MemLoad, and the final backdoor, named 'HttpTroy,'" security researcher Alexandru-Cristian Bardaș said. Present within the ZIP archive is a SCR file of the same name, opening which triggered the execution chain, starting with a Golang binary containing three embedded files, including a decoy PDF document that's displayed...

Threat hunters have uncovered similarities between a banking malware called Coyote and a newly disclosed malicious program dubbed Maverick that has been propagated via WhatsApp. According to a report from CyberProof, both malware strains are written in .NET, target Brazilian users and banks, and feature identical functionality to decrypt, targeting banking URLs and monitor banking applications. More importantly, both include the ability to spread through WhatsApp Web . Maverick was first documented by Trend Micro early last month, attributing it to a threat actor dubbed Water Saci . The campaign involves two components: A self-propagating malware referred to as SORVEPOTEL that's spread via the desktop web version of WhatsApp and is used to deliver a ZIP archive containing the Maverick payload. The malware is designed to monitor active browser window tabs for URLs that match a hard-coded list of financial institutions in Latin America. Should the URLs match, it establishes con...

A malicious package uploaded to the npm registry has been found deploying a sophisticated remote access trojan on compromised Windows machines. The package, named " oscompatible ," was published on January 9, 2024, attracting a total of 380 downloads before it was taken down. oscompatible included a "few strange binaries," according to software supply chain security firm Phylum, including a single executable file, a dynamic-link library (DLL) and an encrypted DAT file, alongside a JavaScript file. This JavaScript file ("index.js") executes an "autorun.bat" batch script but only after running a compatibility check to determine if the target machine runs on Microsoft Windows. If the platform is not Windows, it displays an error message to the user, stating the script is running on Linux or an unrecognized operating system, urging them to run it on "Windows Server OS." The batch script, for its part, verifies if it has admin privil...

Google on Wednesday disclosed that the Chinese state-sponsored threat actor known as APT41 leveraged a malware called TOUGHPROGRESS that uses Google Calendar for command-and-control (C2). The tech giant, which discovered the activity in late October 2024, said the malware was hosted on a compromised government website and was used to target multiple other government entities. "Misuse of cloud services for C2 is a technique that many threat actors leverage in order to blend in with legitimate activity," Google Threat Intelligence Group (GTIG) researcher Patrick Whitsell said . APT41, also tracked as Axiom, Blackfly, Brass Typhoon (formerly Barium), Bronze Atlas, Earth Baku, HOODOO, RedGolf, Red Kelpie, TA415, Wicked Panda, and Winnti, is the name assigned to a prolific nation-state group known for its targeting of governments and organizations within the global shipping and logistics, media and entertainment, technology, and automotive sectors. In July 2024, Google reve...

Whenever we feel like the Locky ransomware is dead, the notorious threat returns with a bang . Recently, researchers from two security firms have independently spotted two mass email campaigns, spreading two different, but new variants of the Locky ransomware . Lukitus Campaign Sends 23 Million Emails in 24 Hours The campaign spotted by researchers at AppRiver sent out more than 23 million messages containing Locky ransomware in just 24 hours on 28 August across the United States in what appears to be one of the largest malware campaigns in the second half of this year. According to the researchers, the emails sent out in the attack were "extremely vague," with subjects lines such as "please print," "documents," "images," "photos," "pictures," and "scans" in an attempt to convince victims into infecting themselves with Locky ransomware. The email comes with a ZIP attachment (hiding the malware payload) tha...

An ongoing cyber attack campaign originating from China is targeting the Southeast Asian gambling sector to deploy Cobalt Strike beacons on compromised systems.  Cybersecurity firm SentinelOne said the tactics, techniques, and procedures point to the involvement of a threat actor tracked as  Bronze Starlight  (aka Emperor Dragonfly or Storm-0401), which has been linked to the use of  short-lived   ransomware families  as a smokescreen to conceal its espionage motives. "The threat actors abuse Adobe Creative Cloud, Microsoft Edge, and McAfee VirusScan executables vulnerable to DLL hijacking to deploy Cobalt Strike beacons," security researchers Aleksandar Milenkoski and Tom Hegel  said  in an analysis published today. It also bears noting that the campaign exhibits overlaps with an intrusion set monitored by ESET under the name  Operation ChattyGoblin . This activity, in turn, shares commonalities with a  supply chain attack  tha...

A malware campaign distributing the XLoader malware has been observed using the DLL side-loading technique by making use of a legitimate application associated with the Eclipse Foundation. "The legitimate application used in the attack, jarsigner, is a file created during the installation of the IDE package distributed by the Eclipse Foundation," the AhnLab SEcurity Intelligence Center (ASEC) said . "It is a tool for signing JAR (Java Archive) files." The South Korean cybersecurity firm said the malware is propagated in the form of a compressed ZIP archive that includes the legitimate executable as well as the DLLs that are sideloaded to launch the malware - Documents2012.exe, a renamed version of the legitimate jarsigner.exe binary, jli.dll, a DLL file that's modified by the threat actor to decrypt and inject concrt140e.dll, and concrt140e.dll, the XLoader payload The attack chain crosses over to the malicious phase when "Documents2012.exe...

The North Korean threat actor known as Kimsuky has been linked to a new campaign that distributes a new variant of Android malware called DocSwap via QR codes hosted on phishing sites mimicking Seoul-based logistics firm CJ Logistics (formerly CJ Korea Express). "The threat actor leveraged QR codes and notification pop-ups to lure victims into installing and executing the malware on their mobile devices," ENKI said . "The malicious app decrypts an embedded encrypted APK and launches a malicious service that provides RAT capabilities." "Since Android blocks apps from unknown sources and displays security warnings by default, the threat actor claims the app is a safe, official release to trick victims into ignoring the warning and installing the malware." According to the South Korean cybersecurity company, some of these artifacts masquerade as package delivery service apps. It's being assessed that the threat actors are using smishing texts or phi...

An updated version of a malware loader codenamed  IceXLoader  is suspected of having compromised thousands of personal and enterprise Windows machines across the world. IceXLoader is a commodity malware that's sold for $118 on underground forums for a lifetime license. It's chiefly employed to download and execute additional malware on breached hosts. This past June, Fortinet FortiGuard Labs said it  uncovered  a version of the trojan written in the Nim programming language with the goal of evading analysis and detection. "While the version discovered in June (v3.0) looked like a work-in-progress, we recently observed a newer v3.3.3 loader which looks to be fully functionable and includes a multi-stage delivery chain," Natalie Zargarov, cybersecurity researcher at Minerva Labs,  said  in a report published Tuesday. IceXLoader is traditionally distributed through phishing campaigns, with emails containing ZIP archives functioning as a trigger to deploy...

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 ...

An Iran-nexus cyber espionage group known as UNC1549 has been attributed to a new campaign targeting European telecommunications companies, successfully infiltrating 34 devices across 11 organizations as part of a recruitment-themed activity on LinkedIn. Swiss cybersecurity company PRODAFT is tracking the cluster under the name Subtle Snail . It's assessed to be affiliated with Iran's Islamic Revolutionary Guard Corps (IRGC). The targeted 11 companies are located in Canada, France, the United Arab Emirates, the United Kingdom, and the United States. "The group operates by posing as HR representatives from legitimate entities to engage employees, then compromises them through deployment of a MINIBIKE backdoor variant that communicates with command-and-control (C2) infrastructure proxied through Azure cloud services to bypass detection," the company said in a report shared with The Hacker News. UNC1549 (aka TA455), believed to be active since at least June 2022, ...

CryptoLocker is an especially insidious form of Ransomeware malware that was first detected in the wild in September 2013, restricts access to infected computers and requires victims to pay a ransom in order to regain full access. What makes CryptoLocker so bad is the way it encrypts the user data on your hard drive using a strong encryption method. This makes it literally impossible to access your own data without paying the ransom amount to the criminals between $100 and $300 or two  Bitcoins , even now more. Once affected you will be locked out of your computer and unless you pay the ransom amount in 72 hours , the virus will delete the decryption key to decrypt all the files on your PC . The malware lands on PCs the same way other malware does and a few sensible precautions will help minimize the chances of a CrytoLocker attack. Yesterday, we reported that - UK's National Crime Agency has given out an urgent national alert that a mass spamming event target...

Cybersecurity researchers have disclosed a new malware campaign that delivers Hijack Loader artifacts that are signed with legitimate code-signing certificates. French cybersecurity company HarfangLab, which detected the activity at the start of the month, said the attack chains aim to deploy an information stealer known as Lumma. Hijack Loader , also known as DOILoader, IDAT Loader, and SHADOWLADDER, first came to light in September 2023. Attack chains involving the malware loader typically involve tricking users into downloading a booby-trapped binary under the guise of pirated software or movies. Recent variations of these campaigns have been found to direct users to fake CAPTCHA pages that urge site visitors to prove they are human by copying and running an encoded PowerShell command that drops the malicious payload in the form of a ZIP archive. HarfangLab said it observed three different versions of the PowerShell script starting mid-September 2024 - A PowerShell script ...

Cyber attackers never stop inventing new ways to compromise their targets. That's why organizations must stay updated on the latest threats.  Here's a quick rundown of the current malware and phishing attacks you need to know about to safeguard your infrastructure before they reach you. Zero-day Attack: Corrupted Malicious Files Evade Detection by Most Security Systems  The analyst team at ANY.RUN recently shared their analysis of an ongoing zero-day attack . It has been active since at least August and still remains unaddressed by most detection software to this day. The attack involves the use of intentionally corrupted Word documents and ZIP archives with malicious files inside. VirusTotal shows 0 detections for one of the corrupted files Due to corruption, security systems cannot properly identify the type of these files and run analysis on them, which results in zero threat detections. Word will ask the user if they want to restore a corrupted file Once these fi...