Browsing tag

Cyber-Attack

U.S. Warns of APT Hackers Targeting ICS/SCADA Systems with Specialized Malware

The U.S. government on Wednesday warned of nation-state actors deploying specialized malware to maintain access to industrial control systems (ICS) and supervisory control and data acquisition (SCADA) devices. “The APT actors have developed custom-made tools for targeting ICS/SCADA devices,” multiple U.S. agencies said in an alert. “The tools enable them to scan for, compromise, and […]

Hamas-linked Hackers Targeting High-Ranking Israelis Using ‘Catfish’ Lures

A threat actor with affiliations to the cyber warfare division of Hamas has been linked to an “elaborate campaign” targeting high-profile Israeli individuals employed in sensitive defense, law enforcement, and emergency services organizations. “The campaign operators use sophisticated social engineering techniques, ultimately aimed to deliver previously undocumented backdoors for Windows and Android devices,” cybersecurity company […]

Multiple Hacker Groups Capitalizing on Ukraine Conflict for Distributing Malware

At least three different advanced persistent threat (APT) groups from across the world have launched spear-phishing campaigns in mid-March 2022 using the ongoing Russo-Ukrainian war as a lure to distribute malware and steal sensitive information. The campaigns, undertaken by El Machete, Lyceum, and SideWinder, have targeted a variety of sectors, including energy, financial, and governmental […]

Hackers Increasingly Using ‘Browser-in-the-Browser’ Technique in Ukraine Related Attacks

A Belarusian threat actor known as Ghostwriter (aka UNC1151) has been spotted leveraging the recently disclosed browser-in-the-browser (BitB) technique as part of their credential phishing campaigns exploiting the ongoing Russo-Ukrainian conflict. The method, which masquerades as a legitimate domain by simulating a browser window within the browser, makes it possible to mount convincing social engineering […]

New Report on Okta Hack Reveals the Entire Episode LAPSUS$ Attack

An independent security researcher has shared what’s a detailed timeline of events that transpired as the notorious LAPSUS$ extortion gang broke into a third-party provider linked to the cyber incident at Okta in late January 2022. In a set of screenshots posted on Twitter, Bill Demirkapi published a two-page “intrusion timeline” allegedly prepared by Mandiant, […]

U.S. Charges 4 Russian Govt. Employees Over Hacking Critical Infrastructure Worldwide

The U.S. government on Thursday released a cybersecurity advisory outlining multiple intrusion campaigns conducted by state-sponsored Russian cyber actors from 2011 to 2018 that targeted the energy sector in the U.S. and beyond. “The [Federal Security Service] conducted a multi-stage campaign in which they gained remote access to U.S. and international Energy Sector networks, deployed […]

U.S. Government Warns Companies of Potential Russian Cyber Attacks

The U.S. government on Monday once again cautioned of potential cyber attacks from Russia in retaliation for economic sanctions imposed by the west on the country following its military assault on Ukraine last month. “It’s part of Russia’s playbook,” U.S. President Joe Biden said in a statement, citing “evolving intelligence that the Russian Government is […]

Google Uncovers ‘Initial Access Broker’ Working with Conti Ransomware Gang

Google’s Threat Analysis Group (TAG) took the wraps off a new initial access broker that it said is closely affiliated to a Russian cyber crime gang notorious for its Conti and Diavol ransomware operations. Dubbed Exotic Lily, the financially motivated threat actor has been observed exploiting a now-patched critical flaw in the Microsoft Windows MSHTML […]

CaddyWiper: Yet Another Data Wiping Malware Targeting Ukrainian Networks

Two weeks after details emerged about a second data wiper strain delivered in attacks against Ukraine, yet another destructive malware has been detected amid Russia’s continuing military invasion of the country. Slovak cybersecurity company ESET dubbed the third wiper “CaddyWiper,” which it said it first observed on March 14 around 9:38 a.m. UTC. Metadata associated […]

Emotet Botnet’s Latest Resurgence Spreads to Over 100,000 Computers

The insidious Emotet botnet, which staged a return in November 2021 after a 10-month-long hiatus, is once again exhibiting signs of steady growth, amassing a swarm of over 100,000 infected hosts for perpetrating its malicious activities. “While Emotet has not yet attained the same scale it once had, the botnet is showing a strong resurgence […]

Hackers Abuse Mitel Devices to Amplify DDoS Attacks by 4 Billion Times

Threat actors have been observed abusing a high-impact reflection/amplification method to stage sustained distributed denial-of-service (DDoS) attacks for up to 14 hours with a record-breaking amplification ratio of 4,294,967,296 to 1. The attack vector – dubbed TP240PhoneHome (CVE-2022-26143) – has been weaponized to launch significant DDoS attacks targeting broadband access ISPs, financial institutions, logistics companies, […]

Google: Russian Hackers Target Ukrainians, European Allies via Phishing Attacks

A broad range of threat actors, including Fancy Bear, Ghostwriter, and Mustang Panda, have launched phishing campaigns against Ukraine, Poland, and other European entities amid Russia’s invasion of Ukraine. Google’s Threat Analysis Group (TAG) said it took down two Blogspot domains that were used by the nation-state group FancyBear (aka APT28) – which is attributed […]

Ransom DDoS Attack that Reached a Rate of 2.5 Million Requests per Second

Imperva security firm recently claimed that it has managed to foil a massive ransom distributed denial-of-service (DDoS) cyberattack that peaked at 2.5 million requests per second recently (on a single server), keeping some unnamed site up and running and uncrashed by reducing the RPS by 99%. Ransom DDoS attacks have been around for a long […]

Imperva Thwarts 2.5 Million RPS Ransom DDoS Extortion Attacks

Cybersecurity company Imperva on Friday said it recently mitigated a ransom distributed denial-of-service (DDoS) attack targeting an unnamed website that peaked at 2.5 million requests per second (RPS). “While ransom DDoS attacks are not new, they appear to be evolving and becoming more interesting with time and with each new phase,” Nelli Klepfish, security analyst […]

Russia Releases List of IPs, Domains Attacking Its Infrastructure with DDoS Attacks

As the ongoing Russia-Ukraine conflict continues to escalate, the Russian government on Thursday released a massive list containing 17,576 IP addresses and 166 domains that it said are behind a series of distributed denial-of-service (DDoS) attacks aimed at its domestic infrastructure. Some of the noticeable domains in the listing released by Russia’s National Coordination Center […]

Hackers Begin Weaponizing TCP Middlebox Reflection for Amplified DDoS Attacks

Distributed denial-of-service (DDoS) attacks leveraging a new amplification technique called TCP Middlebox Reflection have been detected for the first time in the wild, six months after the novel attack mechanism was presented in theory. “The attack […] abuses vulnerable firewalls and content filtering systems to reflect and amplify TCP traffic to a victim machine, creating […]

Microsoft Finds FoxBlade Malware Hit Ukraine Hours Before Russian Invasion

UPDATE: It’s worth noting that the malware Microsoft tracks as FoxBlade is the same as the data wiper that’s been denominated HermeticWiper (aka KillDisk). Microsoft on Monday disclosed that it detected a new round of offensive and destructive cyberattacks directed against Ukraine’s digital infrastructure hours before Russia launched its first missile strikes last week. The […]

China-linked Daxin Malware Targeted Multiple Governments in Espionage Attacks

A previously undocumented espionage tool has been deployed against selected governments and other critical infrastructure targets as part of a long-running espionage campaign orchestrated by China-linked threat actors since at least 2013. Broadcom’s Symantec Threat Hunter team characterized the backdoor, named Daxin, as a technologically advanced malware, allowing the attackers to carry out a variety […]

Russia-Ukraine War: Phishing, Malware and Hacker Groups Taking Sides

Ukraine’s Computer Emergency Response Team (CERT-UA) has warned of Belarusian state-sponsored hackers targeting its military personnel and related individuals as part of a phishing campaign mounted amidst Russia’s military invasion of the country. “Mass phishing emails have recently been observed targeting private ‘i.ua’ and ‘meta.ua’ accounts of Ukrainian military personnel and related individuals,” the CERT-UA […]