Cybersecurity agencies from Australia, the U.K., and the U.S. on Wednesday released a joint advisory warning of active exploitation of Fortinet and Microsoft Exchange ProxyShell vulnerabilities by Iranian state-sponsored actors to gain initial access to vulnerable systems for follow-on activities, including data exfiltration and ransomware. The threat actor is believed to have … [Read more...] about U.S., U.K. and Australia Warn of Iranian Hackers Exploiting Microsoft, Fortinet Flaws
cyber attacks
New Blacksmith Exploit Bypasses Current Rowhammer Attack Defenses
Cybersecurity researchers have demonstrated yet another variation of the Rowhammer attack affecting all DRAM (dynamic random-access memory) chips that bypasses currently deployed mitigations, thereby effectively compromising the security of the devices. The new technique — dubbed "Blacksmith" (CVE-2021-42114, CVSS score: 9.0) — is designed to trigger bit flips on target refresh … [Read more...] about New Blacksmith Exploit Bypasses Current Rowhammer Attack Defenses
Researchers Demonstrate New Fingerprinting Attack on Tor Encrypted Traffic
A new analysis of website fingerprinting (WF) attacks aimed at the Tor web browser has revealed that it's possible for an adversary to glean a website frequented by a victim, but only in scenarios where the threat actor is interested in a specific subset of the websites visited by users. "While attacks can exceed 95% accuracy when monitoring a small set of five popular … [Read more...] about Researchers Demonstrate New Fingerprinting Attack on Tor Encrypted Traffic
Hackers Increasingly Using HTML Smuggling in Malware and Phishing Attacks
Threat actors are increasingly banking on the technique of HTML smuggling in phishing campaigns as a means to gain initial access and deploy an array of threats, including banking malware, remote administration trojans (RATs), and ransomware payloads. Microsoft 365 Defender Threat Intelligence Team, in a new report published Thursday, disclosed that it identified infiltrations … [Read more...] about Hackers Increasingly Using HTML Smuggling in Malware and Phishing Attacks
Abcbot — A New Evolving Wormable Botnet Malware Targeting Linux
Researchers from Qihoo 360's Netlab security team have released details of a new evolving botnet called "Abcbot" that has been observed in the wild with worm-like propagation features to infect Linux systems and launch distributed denial-of-service (DDoS) attacks against targets. While the earliest version of the botnet dates back to July 2021, new variants observed as recently … [Read more...] about Abcbot — A New Evolving Wormable Botnet Malware Targeting Linux
Hackers Exploit macOS Zero-Day to Hack Hong Kong Users with new Implant
Google researchers on Thursday disclosed that it found a watering hole attack in late August exploiting a now-parched zero-day in macOS operating system and targeting Hong Kong websites related to a media outlet and a prominent pro-democracy labor and political group to deliver a never-before-seen backdoor on compromised machines. "Based on our findings, we believe this threat … [Read more...] about Hackers Exploit macOS Zero-Day to Hack Hong Kong Users with new Implant
Researchers Uncover Hacker-for-Hire Group That’s Active Since 2015
A new cyber mercenary hacker-for-hire group dubbed "Void Balaur" has been linked to a string of cyberespionage and data theft activities targeting thousands of entities as well as human rights activists, politicians, and government officials around the world at least since 2015 for financial gain while lurking in the shadows. Named after a many-headed dragon from Romanian … [Read more...] about Researchers Uncover Hacker-for-Hire Group That’s Active Since 2015
Researchers Discover PhoneSpy Malware Spying on South Korean Citizens
An ongoing mobile spyware campaign has been uncovered snooping on South Korean residents using a family of 23 malicious Android apps to siphon sensitive information and gain remote control of the devices. "With more than a thousand South Korean victims, the malicious group behind this invasive campaign has had access to all the data, communications, and services on their … [Read more...] about Researchers Discover PhoneSpy Malware Spying on South Korean Citizens
Unique Challenges to Cyber-Security in Healthcare and How to Address Them
No business is out of danger of cyberattacks today. However, specific industries are particularly at risk and a favorite of attackers. For years, the healthcare industry has taken the brunt of ransomware attacks, data breaches, and other cyberattacks. Why is the healthcare industry particularly at risk for a cyberattack? What are the unique challenges to cybersecurity in … [Read more...] about Unique Challenges to Cyber-Security in Healthcare and How to Address Them
Experts Detail Malicious Code Dropped Using ManageEngine ADSelfService Exploit
At least nine entities across the technology, defense, healthcare, energy, and education industries were compromised by leveraging a recently patched critical vulnerability in Zoho's ManageEngine ADSelfService Plus self-service password management and single sign-on (SSO) solution. The spying campaign, which was observed starting September 22, 2021, involved the threat actor … [Read more...] about Experts Detail Malicious Code Dropped Using ManageEngine ADSelfService Exploit