China-linked APT group GREF is behind a malware campaign distributing spyware via trojanized Signal and Telegram apps on Google Play ESET researchers uncovered a cyberespionage campaign carried out by the China-linked APT group known as GREF that is distributing spyware via trojanized Signal and Telegram apps on Google Play and Samsung Galaxy stores. The malware […]
Threat actors started using the exploit chain in attacks on Juniper EX switches and SRX firewalls shortly after the release of the PoC code. This week, watchTowr Labs security researchers published a proof-of-concept exploit (PoC) exploit code for vulnerabilities in Juniper SRX firewalls. An unauthenticated attacker can chain the vulnerabilities to gain remote code execution in Juniper […]
FBI coordinated an international law enforcement operation, named Operation ‘Duck Hunt’, that dismantled the Qakbot botnet. The FBI announced that the Qakbot botnet has been dismantled as a result of an international law enforcement operation named Operation ‘Duck Hunt.’ Qakbot, also known as QBot, QuackBot and Pinkslipbot, is an info-stealing malware that has been active […]
China-linked threat actors breached government organizations worldwide with attacks exploiting Barracuda ESG zero-day. In June, Mandiant researchers linked the threat actor UNC4841 to the attacks that exploited the recently patched Barracuda ESG zero-day vulnerability to China. “Through the investigation, Mandiant identified a suspected China-nexus actor, currently tracked as UNC4841, targeting a subset of Barracuda ESG […]
Japan’s National Center of Incident Readiness and Strategy for Cybersecurity (NISC) has been infiltrated for months. Threat actors have infiltrated Japan’s National Center of Incident Readiness and Strategy for Cybersecurity (NISC) for as much as nine months. The intruders China-linked hackers may have gained access to sensitive data, according to three government and private sector […]
A financially motivated actor linked to the FIN8 group exploits the CVE-2023-3519 RCE in attacks on Citrix NetScaler systems in massive attacks. Sophos X-Ops is tracking an ongoing campaign, which is targeting Citrix NetScaler systems, conducted by threat actors linked to the FIN8 group [BleepingComputer, SOCRadar]. The hackers are exploiting the remote code execution, tracked […]
Japan’s JPCERT warns of a new recently detected ‘MalDoc in PDF’ attack that embeds malicious Word files into PDFs. Japan’s computer emergency response team (JPCERT) has recently observed a new attack technique, called ‘MalDoc in PDF’, that bypasses detection by embedding a malicious Word file into a PDF file. The researchers explained that a file […]
A security researcher demonstrated how to discover a target’s IP address by sending a link over the Skype mobile app. The security researcher Yossi discovered that is possible to discover a target’s IP address by sending a link over the Skype mobile app. The researcher pointed out that the attack only requires the target to […]
Researchers published a PoC exploit code for Juniper SRX firewall flaws that can be chained to gain RCE in Juniper’s JunOS. watchTowr Labs security researchers published a proof-of-concept exploit (PoC) exploit code for vulnerabilities in Juniper SRX firewalls. An unauthenticated attacker can chain the vulnerabilities to gain remote code execution in Juniper JunOS on vulnerable […]
The Rhysida ransomware group claimed to have hacked Prospect Medical Holdings and sensitive information from the company. In early August, a cyberattack disrupted the computer systems of multiple hospitals operated by Prospect Medical Holdings, which are located in multiple states, including California, Texas, Connecticut, Rhode Island, and Pennsylvania. Some emergency rooms in multiple hospitals in […]