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Misconfigured and vulnerable Linux servers are the target of an ongoing campaign that delivers a stealthy malware dubbed perfctl with the primary aim of running a cryptocurrency miner and proxyjacking software. "Perfctl is particularly elusive and persistent, employing several sophisticated techniques," Aqua security researchers Assaf Morag and Idan Revivo said in a report shared with The Hacker News. "When a new user logs into the server, it immediately stops all 'noisy' activities, lying dormant until the server is idle again. After execution, it deletes its binary and continues to run quietly in the background as a service." It's worth noting that some aspects of the campaign were disclosed last month by Cado Security, which detailed an activity cluster that targets internet-exposed Selenium Grid instances with both cryptocurrency mining and proxyjacking software. Specifically, the fileless perfctl malware has been found to exploit a security

Threat actors with ties to North Korea have been observed delivering a previously undocumented backdoor and remote access trojan (RAT) called VeilShell as part of a campaign targeting Cambodia and likely other Southeast Asian countries. The activity, dubbed SHROUDED#SLEEP by Securonix, is believed to be the handiwork of APT37 , which is also known as InkySquid, Reaper, RedEyes, Ricochet Chollima, Ruby Sleet, and ScarCruft. Active since at least 2012, the adversarial collective is assessed to be part of North Korea's Ministry of State Security (MSS). Like with other state-aligned groups, those affiliated with North Korea, including the Lazarus Group and Kimsuky, vary in their modus operandi and likely have ever-evolving objectives based on state interests. A key malware in its toolbox is RokRAT (aka Goldbackdoor), although the group has also developed custom tools to facilitate covert intelligence gathering. It's currently not known how the first stage payload, a ZIP arc

For years, securing a company's systems was synonymous with securing its "perimeter." There was what was safe "inside" and the unsafe outside world. We built sturdy firewalls and deployed sophisticated detection systems, confident that keeping the barbarians outside the walls kept our data and systems safe. The problem is that we no longer operate within the confines of physical on-prem installations and controlled networks. Data and applications now reside in distributed cloud environments and data centers, accessed by users and devices connecting from anywhere on the planet. The walls have crumbled, and the perimeter has dissolved, opening the door to a new battlefield: identity . Identity is at the center of what the industry has praised as the new gold standard of enterprise security: "zero trust." In this paradigm, explicit trust becomes mandatory for any interactions between systems, and no implicit trust shall subsist. Every access request, regardless of its origin,

INTERPOL has announced the arrest of eight individuals in Côte d'Ivoire and Nigeria as part of a crackdown on phishing scams and romance cyber fraud. Dubbed Operation Contender 2.0, the initiative is designed to tackle cyber-enabled crimes in West Africa, the agency said. One such threat involved a large-scale phishing scam targeting Swiss citizens that resulted in financial losses to the tune of more than $1.4 million. The cybercriminals posed as buyers on small advertising websites and used QR codes to direct victims to fraudulent websites that mimicked a legitimate payment platform. This allowed victims to inadvertently enter personal information such as their credentials or card numbers. The perpetrators also impersonated the unnamed platform's customer service agents over the phone to further deceive them. As many as 260 scam reports are said to have been received by Swiss authorities between August 2023 and April 2024, prompting a collaborative investigation that

A new wave of international law enforcement actions has led to four arrests and the takedown of nine servers linked to the LockBit (aka Bitwise Spider) ransomware operation, marking the latest salvo against what was once a prolific financially motivated group. This includes the arrest of a suspected LockBit developer in France while on holiday outside of Russia, two individuals in the U.K. who allegedly supported an affiliate, and an administrator of a bulletproof hosting service in Spain used by the ransomware group, Europol said in a statement. In conjunction, authorities outed a Russian national named Aleksandr Ryzhenkov (aka Beverley, Corbyn_Dallas, G, Guester, and Kotosel) as one of the high-ranking members of the Evil Corp cybercrime group, while simultaneously painting him as a LockBit affiliate. Sanctions have also been announced against seven individuals and two entities linked to the e-crime gang. "The United States, in close coordination with our allies and part

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a security flaw impacting Ivanti Endpoint Manager (EPM) that the company patched in May to its Known Exploited Vulnerabilities ( KEV ) catalog, based on evidence of active exploitation. The vulnerability, tracked as CVE-2024-29824 , carries a CVSS score of 9.6 out of a maximum of 10.0, indicating critical severity. "An unspecified SQL Injection vulnerability in Core server of Ivanti EPM 2022 SU5 and prior allows an unauthenticated attacker within the same network to execute arbitrary code," the software service provider said in an advisory released on May 21, 2024. Horizon3.ai, which released a proof-of-concept (PoC) exploit for the flaw in June, said the issue is rooted in a function called RecordGoodApp() within a DLL named PatchBiz.dll. Specifically, it concerns how the function handles an SQL query statement, thereby allowing an attacker to gain remote code execution via xp_cmdshe

A large-scale fraud campaign leveraged fake trading apps published on the Apple App Store and Google Play Store, as well as phishing sites, to defraud victims, per findings from Group-IB. The campaign is part of a consumer investment fraud scheme that's also widely known as pig butchering , in which prospective victims are lured into making investments in cryptocurrency or other financial instruments after gaining their trust under the guise of a romantic relationship or an investment advisor. Such manipulative and social engineering operations often end with the victims losing their funds, and in some cases, the extraction of even more money from them by requesting various fees and other payments. The Singapore-headquartered company said the campaign has a global reach, with victims reported across Asia-Pacific, European, Middle East, and Africa. The bogus apps, built using the UniApp Framework, have been classified under the moniker UniShadowTrade . The activity cluster i

A previously undocumented threat actor called CeranaKeeper has been linked to a string of data exfiltration attacks targeting Southeast Asia. Slovak cybersecurity firm ESET, which observed campaigns targeting governmental institutions in Thailand starting in 2023, attributed the activity cluster as aligned to China, leveraging tools previously identified as used by the Mustang Panda actor. "The group constantly updates its backdoor to evade detection and diversifies its methods to aid massive data exfiltration," security researcher Romain Dumont said in an analysis published today. "CeranaKeeper abuses popular, legitimate cloud and file-sharing services such as Dropbox and OneDrive to implement custom backdoors and extraction tools." Some of the other countries targeted by the adversary include Myanmar, the Philippines, Japan, and Taiwan, all of which have been targeted by Chinese state-sponsored threat actors in recent years. ESET described CeranaKeeper a

A spear-phishing email campaign has been observed targeting recruiters with a JavaScript backdoor called More_eggs, indicating persistent efforts to single out the sector under the guise of fake job applications. "A sophisticated spear-phishing lure tricked a recruitment officer into downloading and executing a malicious file disguised as a resume, leading to a more_eggs backdoor infection," Trend Micro researchers Ryan Soliven, Maria Emreen Viray, and Fe Cureg said in an analysis. More_eggs, sold as a malware-as-a-service (MaaS), is a malicious software that comes with capabilities to siphon credentials, including those related to online bank accounts, email accounts, and IT administrator accounts. It's attributed to a threat actor called the Golden Chickens group (aka Venom Spider), and has been put to use by several other e-crime groups like FIN6 (aka ITG08 ), Cobalt, and Evilnum. Earlier this June, eSentire disclosed details of a similar attack that leverages

A little over a dozen new security vulnerabilities have been discovered in residential and enterprise routers manufactured by DrayTek that could be exploited to take over susceptible devices. "These vulnerabilities could enable attackers to take control of a router by injecting malicious code, allowing them to persist on the device and use it as a gateway into enterprise networks," Forescout Vedere Labs said in a technical report shared with The Hacker News. Of the 14 security flaws – collectively called DRAY:BREAK – two are rated critical, nine are rated high, and three are rated medium in severity. The most critical of the shortcomings is a flaw that has been awarded the maximum CVSS score of 10.0. CVE-2024-41592 concerns a buffer overflow bug in the "GetCGI()" function in the Web user interface that could lead to a denial-of-service (DoS) or remote code execution (RCE) when processing the query string parameters. Another critical vulnerability (CVE-2024-41

Cybersecurity researchers have disclosed that 5% of all Adobe Commerce and Magento stores have been hacked by malicious actors by exploiting a security vulnerability dubbed CosmicSting. Tracked as CVE-2024-34102 (CVSS score: 9.8), the critical flaw relates to an improper restriction of XML external entity reference (XXE) vulnerability that could result in remote code execution. The shortcoming, credited to a researcher named " spacewasp ," was patched by Adobe in June 2024. Dutch security firm Sansec, which has described CosmicSting as the "worst bug to hit Magento and Adobe Commerce stores in two years," said the e-commerce sites are being compromised at the rate of three to five per hour. The flaw has since come under widespread exploitation , prompting the U.S. Cybersecurity and Infrastructure Security Agency (CISA) to add it to the Known Exploited Vulnerabilities (KEV) catalog in mid-July 2024. Some of these attacks involve weaponizing the flaw to ste

Dynamic malware analysis is a key part of any threat investigation. It involves executing a sample of a malicious program in the isolated environment of a malware sandbox to monitor its behavior and gather actionable indicators. Effective analysis must be fast, in-depth, and precise. These five tools will help you achieve it with ease. 1. Interactivity Having the ability to interact with the malware and the system in real-time is a great advantage when it comes to dynamic analysis. This way, you can not only observe its execution but also see how it responds to your inputs and triggers specific behaviors.  Plus, it saves time by allowing you to download samples hosted on file-sharing websites or open those packed inside an archive, which is a common way to deliver payloads to victims. The initial phishing email containing the malicious pdf and password for the archive Check out this sandbox session in the ANY.RUN sandbox that shows how interactivity is used for analyzing the en

Three different organizations in the U.S. were targeted in August 2024 by a North Korean state-sponsored threat actor called Andariel as part of a likely financially motivated attack. "While the attackers didn't succeed in deploying ransomware on the networks of any of the organizations affected, it is likely that the attacks were financially motivated," Symantec, part of Broadcom, said in a report shared with The Hacker News. Andariel is a threat actor that's assessed to be a sub-cluster within the infamous Lazarus Group. It's also tracked as APT45, DarkSeoul, Nickel Hyatt, Onyx Sleet (formerly Plutonium), Operation Troy, Silent Chollima, and Stonefly. It's been active since at least 2009. An element within North Korea's Reconnaissance General Bureau (RGB), the hacking crew has a track record of deploying ransomware strains such as SHATTEREDGLASS and Maui , while also developing an arsenal of custom backdoors like Dtrack (aka Valefor and Preft),

Cybersecurity researchers are warning about active exploitation attempts targeting a newly disclosed security flaw in Synacor's Zimbra Collaboration. Enterprise security firm Proofpoint said it began observing the activity starting September 28, 2024. The attacks seek to exploit CVE-2024-45519 , a severe security flaw in Zimbra's postjournal service that could enable unauthenticated attackers to execute arbitrary commands on affected installations. "The emails spoofing Gmail were sent to bogus addresses in the CC fields in an attempt for Zimbra servers to parse and execute them as commands," Proofpoint said in a series of posts on X. "The addresses contained Base64 strings that are executed with the sh utility." The critical issue was addressed by Zimbra in versions 8.8.15 Patch 46, 9.0.0 Patch 41, 10.0.9, and 10.1.1 released on September 4, 2024. A security researcher named lebr0nli (Alan Li) has been credited with discovering and reporting the short