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A previously unknown threat actor has been targeting companies in the U.S. and Germany with bespoke malware designed to steal confidential information. Enterprise security company Proofpoint, which is tracking the activity cluster under the name  Screentime , said the group, dubbed  TA866 , is likely financially motivated. "TA866 is an organized actor able to perform well thought-out attacks at scale based on their availability of custom tools; ability and connections to purchase tools and services from other vendors; and increasing activity volumes," the company  assessed . Campaigns mounted by the adversary are said to have commenced around October 3, 2022, with the attacks launched via emails containing a booby-trapped attachment or URL that leads to malware. The attachments range from macro-laced Microsoft Publisher files to PDFs with URLs pointing to JavaScript files. The intrusions have also leveraged conversation hijacking to entice recipients into clicking on...

After the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a decryptor for affected victims to recover from  ESXiArgs ransomware attacks , the threat actors have bounced back with an updated version that encrypts more data. The emergence of the new variant was reported by a system administrator on an online forum, where another participant stated that files larger than 128MB will have 50% of their data encrypted, making the recovery process more challenging. Another notable change is the removal of the Bitcoin address from the ransom note, with the attackers now urging victims to contact them on Tox to obtain the wallet information. The threat actors "realized that researchers were tracking their payments, and they may have even known before they released the ransomware that the encryption process in the original variant was relatively easy to circumvent," Censys  said  in a write-up. "In other words: they are watching." Statistics shared...

Suspected Russian threat actors have been targeting Eastern European users in the crypto industry with fake job opportunities as bait to install information-stealing malware on compromised hosts. The attackers "use several highly obfuscated and under-development custom loaders in order to infect those involved in the cryptocurrency industry with Enigma stealer," Trend Micro researchers Aliakbar Zahravi and Peter Girnus  said  in a report this week. Enigma is said to be an altered version of Stealerium, an open source C#-based malware that acts as a stealer, clipper, and keylogger. The intricate infection journey starts with a rogue RAR archive file that's distributed via phishing or social media platforms. It contains two documents, one of which is a .TXT file that includes a set of sample interview questions related to cryptocurrency. The second file is a Microsoft Word document that, while serving as a decoy, is tasked with launching the first-stage Enigma loader, ...

SaaS Adoption is Skyrocketing, Resilience Hasn't Kept Pace SaaS platforms have revolutionized how businesses operate. They simplify collaboration, accelerate deployment, and reduce the overhead of managing infrastructure. But with their rise comes a subtle, dangerous assumption: that the convenience of SaaS extends to resilience. It doesn't. These platforms weren't built with full-scale data protection in mind . Most follow a shared responsibility model — wherein the provider ensures uptime and application security, but the data inside is your responsibility. In a world of hybrid architectures, global teams, and relentless cyber threats, that responsibility is harder than ever to manage. Modern organizations are being stretched across: Hybrid and multi-cloud environments with decentralized data sprawl Complex integration layers between IaaS, SaaS, and legacy systems Expanding regulatory pressure with steeper penalties for noncompliance Escalating ransomware threats and inside...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday  added  three flaws to its Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active abuse in the wild. Included among the three is  CVE-2022-24990 , a bug affecting TerraMaster network-attached storage (TNAS) devices that could lead to unauthenticated remote code execution with the highest privileges. Details about the flaw were  disclosed  by Ethiopian cyber security research firm Octagon Networks in March 2022. The vulnerability, according to a  joint advisory  released by U.S. and South Korean government authorities, is said to have been weaponized by North Korean nation-state hackers to strike healthcare and critical infrastructure entities with ransomware. The second shortcoming to be added to KEV catalog is  CVE-2015-2291 , an unspecified flaw in the Intel ethernet diagnostics driver for Windows (IQVW32.sys and IQVW64.sys) that could throw an a...

Four different rogue packages in the Python Package Index ( PyPI ) have been found to carry out a number of malicious actions, including dropping malware, deleting the netstat utility, and manipulating the SSH authorized_keys file. The packages in question are  aptx ,  bingchilling2 ,  httops , and  tkint3rs , all of which were collectively downloaded about 450 times before they were taken down. While aptx is an attempt to impersonate Qualcomm's  highly popular audio codec  of the same name, httops and tkint3rs are typosquats of https and tkinter, respectively. "Most of these packages had well thought out names, to purposely confuse people," security researcher and journalist Ax Sharma  said . An analysis of the malicious code injected in the setup script reveals the presence of an obfuscated  Meterpreter payload  that's disguised as " pip ," a legitimate package installer for Python, and which can be leveraged to gain shell access to the...

State-backed hackers from North Korea are conducting ransomware attacks against healthcare and critical infrastructure facilities to fund illicit activities, U.S. and South Korean cybersecurity and intelligence agencies warned in a joint advisory. The attacks, which demand cryptocurrency ransoms in exchange for recovering access to encrypted files, are designed to support North Korea's national-level priorities and objectives. This includes "cyber operations targeting the United States and South Korea governments — specific targets include Department of Defense Information Networks and Defense Industrial Base member networks," the authorities  said . Threat actors with North Korea have been  linked  to  espionage ,  financial theft , and cryptojacking operations for years, including the infamous  WannaCry ransomware attacks  of 2017 that infected hundreds of thousands of machines located in over 150 countries. Since then, North Korean nation-stat...

Here are three of the worst breaches, attacker tactics and techniques of 2022, and the security controls that can provide effective, enterprise security protection for them. #1: 2 RaaS Attacks in 13 Months Ransomware as a service is a type of attack in which the ransomware software and infrastructure are leased out to the attackers. These ransomware services can be purchased on the dark web from other threat actors and ransomware gangs. Common purchasing plans include buying the entire tool, using the existing infrastructure while paying per infection, or letting other attackers perform the service while sharing revenue with them. In this attack, the threat actor consists of one of the most prevalent ransomware groups, specializing in access via third parties, while the targeted company is a medium-sized retailer with dozens of sites in the United States. The threat actors used ransomware as a service to breach the victim's network. They were able to exploit third-party creden...

In a first-of-its-kind coordinated action, the U.K. and U.S. governments on Thursday levied sanctions against seven Russian nationals for their affiliation to the TrickBot, Ryuk, and Conti cybercrime operation. The individuals  designated  under sanctions are Vitaly Kovalev (aka Alex Konor, Bentley, or Bergen), Maksim Mikhailov (aka Baget), Valentin Karyagin (aka Globus), Mikhail Iskritskiy (aka Tropa), Dmitry Pleshevskiy (aka Iseldor), Ivan Vakhromeyev (aka Mushroom), and Valery Sedletski (aka Strix). "Current members of the TrickBot group are associated with Russian Intelligence Services," the U.S. Treasury Department  noted . "The TrickBot group's preparations in 2020 aligned them to Russian state objectives and targeting previously conducted by Russian Intelligence Services." TrickBot, which is attributed to a threat actor named ITG23, Gold Blackburn, and Wizard Spider, emerged in 2016 as a derivative of the Dyre banking trojan and evolved into a  highly...

Popular social news aggregation platform Reddit has disclosed that it was the victim of a security incident that enabled unidentified threat actors to gain unauthorized access to internal documents, code, and some unspecified business systems. The company blamed it on a "sophisticated and highly-targeted phishing attack" that took place on February 5, 2023, aimed at its employees. The attack entailed sending out "plausible-sounding prompts" that redirected to a website masquerading as Reddit's intranet portal in an attempt to steal credentials and two-factor authentication (2FA) tokens. A single employee's credentials is said to have been phished in this manner, enabling the threat actor to access Reddit's internal systems. The affected employee self-reported the hack, it further added. The company, however, stressed that there is no evidence to suggest that its production systems were breached or that users' non-public data had been compromise...