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Cybersecurity researchers have uncovered a never-before-seen dropper that serves as a conduit to launch next-stage malware with the ultimate goal of infecting Windows systems with information stealers and loaders. "This memory-only dropper decrypts and executes a PowerShell-based downloader," Google-owned Mandiant said . "This PowerShell-based downloader is being tracked as PEAKLIGHT." Some of the malware strains distributed using this technique are Lumma Stealer , Hijack Loader (aka DOILoader, IDAT Loader, or SHADOWLADDER), and CryptBot , all of which are advertised under the malware-as-a-service (SaaS) model. The starting point of the attack chain is a Windows shortcut (LNK) file that's downloaded via drive-by download techniques -- e.g., when users look up a movie on search engines. It's worth pointing out that the LNK files are distributed within ZIP archives that are disguised as pirated movies. The LNK file connects to a content delivery network...

Cybersecurity researchers have unpacked a new malware strain dubbed PG_MEM that's designed to mine cryptocurrency after brute-forcing their way into PostgreSQL database instances. "Brute-force attacks on Postgres involve repeatedly attempting to guess the database credentials until access is gained, exploiting weak passwords," Aqua security researcher Assaf Morag said in a technical report. "Once accessed, attackers can leverage the COPY ... FROM PROGRAM SQL command to execute arbitrary shell commands on the host, allowing them to perform malicious activities such as data theft or deploying malware." The attack chain observed by the cloud security firm entails targeting misconfigured PostgreSQL databases to create an administrator role in Postgres and exploiting a feature called PROGRAM to run shell commands. In addition, a successful brute-force attack is followed by the threat actor conducting initial reconnaissance and executing commands to strip the ...

Serverless environments, leveraging services such as AWS Lambda, offer incredible benefits in terms of scalability, efficiency, and reduced operational overhead. However, securing these environments is extremely challenging. The core of current serverless security practices often revolves around two key components: log monitoring and static analysis of code or system configuration. But here is the issue with that: 1. Logs Only Tell Part of the Story Logs can track external-facing activities, but they don't provide visibility into the internal execution of functions. For example, if an attacker injects malicious code into a serverless function that doesn't interact with external resources (e.g., external APIs or databases), traditional log-based tools will not detect this intrusion. The attacker may execute unauthorized processes, manipulate files, or escalate privileges—all without triggering log events. 2. Static Misconfiguration Detection is Incomplete Static tools that check ...

In what's a case of an operational security (OPSEC) lapse, the operator behind a new information stealer called Styx Stealer leaked data from their own computer, including details related to the clients, profit information, nicknames, phone numbers, and email addresses. Styx Stealer, a derivative of the Phemedrone Stealer , is capable of stealing browser data, instant messenger sessions from Telegram and Discord, and cryptocurrency wallet information, cybersecurity company Check Point said in an analysis. It first emerged in April 2024. "Styx Stealer is most likely based on the source code of an old version of Phemedrone Stealer, which lacks some features found in newer versions such as sending reports to Telegram, report encryption, and more," the company noted . "However, the creator of Styx Stealer added some new features: auto-start, clipboard monitor and crypto-clipper, additional sandbox evasion, and anti-analysis techniques, and re-implemented sending dat...

Cybersecurity researchers have uncovered a surge in malware infections stemming from malvertising campaigns distributing a loader called FakeBat. "These attacks are opportunistic in nature, targeting users seeking popular business software," the Mandiant Managed Defense team said in a technical report. "The infection utilizes a trojanized MSIX installer, which executes a PowerShell script to download a secondary payload." FakeBat , also called EugenLoader and PaykLoader, is linked to a threat actor named Eugenfest. The Google-owned threat intelligence team is tracking the malware under the name NUMOZYLOD and has attributed the Malware-as-a-Service (MaaS) operation to UNC4536. Attack chains propagating the loader malware make use of drive-by download techniques to push users searching for popular software toward bogus lookalike sites that host booby-trapped MSI installers. Some of the malware families delivered via FakeBat include IcedID, RedLine Stealer, Lumma...

The China-backed threat actor known as Earth Baku has diversified its targeting footprint beyond the Indo-Pacific region to include Europe, the Middle East, and Africa starting in late 2022. Newly targeted countries as part of the activity include Italy, Germany, the U.A.E., and Qatar, with suspected attacks also detected in Georgia and Romania. Governments, media and communications, telecoms, technology, healthcare, and education are some of the sectors singled out as part of the intrusion set. "The group has updated its tools, tactics, and procedures (TTPs) in more recent campaigns, making use of public-facing applications such as IIS servers as entry points for attacks, after which they deploy sophisticated malware toolsets on the victim's environment," Trend Micro researchers Ted Lee and Theo Chen said in an analysis published last week. The findings build upon recent reports from Zscaler and Google-owned Mandiant , which also detailed the threat actor's u...

The U.S. Federal Bureau of Investigation (FBI) on Monday announced the disruption of online infrastructure associated with a nascent ransomware group called Radar/Dispossessor. The effort saw the dismantling of three U.S. servers, three United Kingdom servers, 18 German servers, eight U.S.-based criminal domains, and one German-based criminal domain. Dispossessor is said to be led by individual(s) who go by the online moniker "Brain." "Since its inception in August 2023, Radar/Dispossessor has quickly developed into an internationally impactful ransomware group, targeting and attacking small-to-mid-sized businesses and organizations from the production, development, education, healthcare, financial services, and transportation sectors," the FBI said in a statement. As many as 43 companies have been identified as victims of Dispossessor attacks, including those located in Argentina, Australia, Belgium, Brazil, Canada, Croatia, Germany, Honduras, India, Peru, Pol...

Cybersecurity researchers have discovered a new malicious package on the Python Package Index (PyPI) repository that masquerades as a library from the Solana blockchain platform but is actually designed to steal victims' secrets. "The legitimate Solana Python API project is known as 'solana-py' on GitHub, but simply ' solana ' on the Python software registry, PyPI," Sonatype researcher Ax Sharma said in a report published last week. "This slight naming discrepancy has been leveraged by a threat actor who published a 'solana-py' project on PyPI." The malicious "solana-py" package attracted a total of 1,122 downloads since it was published on August 4, 2024. It's no longer available for download from PyPI. The most striking aspect of the library is that it carried the version numbers 0.34.3, 0.34.4, and 0.34.5. The latest version of the legitimate "solana" package is 0.34.3. This clearly indicates an attempt o...

Cybersecurity researchers have discovered a novel phishing campaign that leverages Google Drawings and shortened links generated via WhatsApp to evade detection and trick users into clicking on bogus links designed to steal sensitive information. "The attackers chose a group of the best-known websites in computing to craft the threat, including Google and WhatsApp to host the attack elements, and an Amazon look-alike to harvest the victim's information," Menlo Security researcher Ashwin Vamshi said . "This attack is a great example of a Living Off Trusted Sites ( LoTS ) threat." The starting point of the attack is a phishing email that directs the recipients to a graphic that appears to be an Amazon account verification link. This graphic, for its part, is hosted on Google Drawings, in an apparent effort to evade detection. Abusing legitimate services has obvious benefits for attackers in that they're not only a low-cost solution, but more importantly, ...

Japanese organizations are the target of a Chinese nation-state threat actor that leverages malware families like LODEINFO and NOOPDOOR to harvest sensitive information from compromised hosts while stealthily remaining under the radar in some cases for a time period ranging from two to three years. Israeli cybersecurity company Cybereason is tracking the campaign under the name Cuckoo Spear , attributing it as related to a known intrusion set dubbed APT10, which is also known as Bronze Riverside, ChessMaster, Cicada, Cloudhopper, MenuPass, MirrorFace, Purple Typhoon (formerly Potassium), and Stone Panda. "The actors behind NOOPDOOR not only utilized LODEINFO during the campaign, but also utilized the new backdoor to exfiltrate data from compromised enterprise networks," it said . The findings come weeks after JPCERT/CC warned of cyber attacks mounted by the threat actor targeting Japanese entities using the two malware strains. Earlier this January, ITOCHU Cyber & I...

Cybersecurity researchers have detailed widespread phishing campaigns targeting small and medium-sized businesses (SMBs) in Poland during May 2024 that led to the deployment of several malware families like Agent Tesla , Formbook , and Remcos RAT . Some of the other regions targeted by the campaigns include Italy and Romania, according to cybersecurity firm ESET. "Attackers used previously compromised email accounts and company servers, not only to spread malicious emails but also to host malware and collect stolen data," ESET researcher Jakub Kaloč said in a report published today. These campaigns, spread across nine waves, are notable for the use of a malware loader called DBatLoader (aka ModiLoader and NatsoLoader) to deliver the final payloads. This, the Slovakian cybersecurity company said, marks a departure from previous attacks observed in the second half of 2023 that leveraged a cryptors-as-a-service (CaaS) dubbed AceCryptor to propagate Remcos RAT (aka Resc...

The nation-state threat actor known as SideWinder has been attributed to a new cyber espionage campaign targeting ports and maritime facilities in the Indian Ocean and Mediterranean Sea. The BlackBerry Research and Intelligence Team, which discovered the activity, said targets of the spear-phishing campaign include countries like Pakistan, Egypt, Sri Lanka, Bangladesh, Myanmar, Nepal, and the Maldives. SideWinder , which is also known by the names APT-C-17, Baby Elephant, Hardcore Nationalist, Leafperforator, Rattlesnake, and Razor Tiger, is assessed to be affiliated with India. It has been operational since 2012, often making use of spear-phishing as a vector to deliver malicious payloads that trigger the attack chains. "SideWinder makes use of email spear-phishing, document exploitation and DLL side-loading techniques in an attempt to avoid detection and deliver targeted implants," the Canadian cybersecurity company said in an analysis published last week. The latest...

CrowdStrike is alerting about an unfamiliar threat actor attempting to capitalize on the Falcon Sensor update fiasco to distribute dubious installers targeting German customers as part of a highly targeted campaign. The cybersecurity company said it identified what it described as an unattributed spear-phishing attempt on July 24, 2024, distributing an inauthentic CrowdStrike Crash Reporter installer via a website impersonating an unnamed German entity. The imposter website is said to have been created on July 20, a day after the botched update crashed nearly 9 million Windows devices, causing extensive IT disruptions across the world. "After the user clicks the Download button, the website leverages JavaScript (JS) that masquerades as JQuery v3.7.1 to download and deobfuscate the installer," CrowdStrike's Counter Adversary Operations team said . "The installer contains CrowdStrike branding, German localization, and a password [is] required to continue install...

A now-patched security flaw in the Microsoft Defender SmartScreen has been exploited as part of a new campaign designed to deliver information stealers such as ACR Stealer, Lumma , and Meduza . Fortinet FortiGuard Labs said it detected the stealer campaign targeting Spain, Thailand, and the U.S. using booby-trapped files that exploit CVE-2024-21412 (CVSS score: 8.1). The high-severity vulnerability allows an attacker to sidestep SmartScreen protection and drop malicious payloads. Microsoft addressed this issue as part of its monthly security updates released in February 2024. "Initially, attackers lure victims into clicking a crafted link to a URL file designed to download an LNK file," security researcher Cara Lin said . "The LNK file then downloads an executable file containing an [HTML Application] script." The HTA file serves as a conduit to decode and decrypt PowerShell code responsible for fetching a decoy PDF file and a shellcode injector that, in tur...

Cybersecurity researchers have discovered what they say is the ninth Industrial Control Systems (ICS)-focused malware that has been used in a disruptive cyber attack targeting an energy company in the Ukrainian city of Lviv earlier this January. Industrial cybersecurity firm Dragos has dubbed the malware FrostyGoop , describing it as the first malware strain to directly use Modbus TCP communications to sabotage operational technology (OT) networks. It was discovered by the company in April 2024. "FrostyGoop is an ICS-specific malware written in Golang that can interact directly with Industrial Control Systems (ICS) using Modbus TCP over port 502," researchers Kyle O'Meara, Magpie (Mark) Graham, and Carolyn Ahlers said in a technical report shared with The Hacker News. It's believed that the malware, mainly designed to target Windows systems, has been used to target ENCO controllers with TCP port 502 exposed to the internet. It has not been tied to any previously...

Threat actors have been observed using swap files in compromised websites to conceal a persistent credit card skimmer and harvest payment information. The sneaky technique, observed by Sucuri on a Magento e-commerce site's checkout page, allowed the malware to survive multiple cleanup attempts, the company said. The skimmer is designed to capture all the data into the credit card form on the website and exfiltrate the details to an attacker-controlled domain named "amazon-analytic[.]com," which was registered in February 2024. "Note the use of the brand name; this tactic of leveraging popular products and services in domain names is often used by bad actors in an attempt to evade detection," security researcher Matt Morrow said . This is just one of many defense evasion methods employed by the threat actor, which also includes the use of swap files ("bootstrap.php-swapme") to load the malicious code while keeping the original file ("bootstra...

Cybersecurity firm CrowdStrike, which is facing the heat for causing worldwide IT disruptions by pushing out a flawed update to Windows devices, is now warning that threat actors are exploiting the situation to distribute Remcos RAT to its customers in Latin America under the guise of providing a hotfix. The attack chains involve distributing a ZIP archive file named " crowdstrike-hotfix.zip ," which contains a malware loader named Hijack Loader (aka DOILoader or IDAT Loader) that, in turn, launches the Remcos RAT payload. Specifically, the archive file also includes a text file ("instrucciones.txt") with Spanish-language instructions that urges targets to run an executable file ("setup.exe") to recover from the issue. "Notably, Spanish filenames and instructions within the ZIP archive indicate this campaign is likely targeting Latin America-based (LATAM) CrowdStrike customers," the company said , attributing the campaign to a suspected e-...

Indian cryptocurrency exchange WazirX has confirmed that it was the target of a security breach that led to the theft of $230 million in cryptocurrency assets. "A cyber attack occurred in one of our [multi-signature] wallets involving a loss of funds exceeding $230 million," the company said in a statement. "This wallet was operated utilizing the services of Liminal's digital asset custody and wallet infrastructure from February 2023." The Mumbai-based company said the attack stemmed from a mismatch between the information that was displayed on Liminal's interface and what was actually signed. It said the payload was replaced to transfer wallet control to an attacker. Crypto custody firm Liminal is one of the six signatories on the wallet and is responsible for transaction verifications. "Our preliminary investigations show that one of the self custody multi-sig smart contract wallets created outside of the Liminal ecosystem has been compromised...