US CISA and the FBI issued a joint alert to warn critical infrastructure partners and public/private organizations of ransomware attacks during holidays. The Cybersecurity and Infrastructure Security Agency (CISA) and the FBI warn critical infrastructure partners of ransomware attacks during the holiday season. During this period offices are often closed and employees are at home, […]
Memento ransomware group locks files inside WinRAR password-protected archives after having observed that its encryption process is blocked by security firms. In October, Sophos researchers have spotted the Memento ransomware that adopts a curious approach to block access to victimsâ files. The ransomware copies files into password-protected WinRAR archives, it uses a renamed freeware version […]
The Conti ransomware group has suffered a data breach that exposed its attack infrastructure and allowed researcher to access it. Researchers at security firm Prodaft were able to identify the real IP address of one of the servers used by the Conti ransomware group and access the console for more than a month. The exposed […]
A malware campaign aimed at Microsoft Exchange servers exploits ProxyShell and ProxyLogon issues and uses stolen internal reply-chain emails. A malware campaign aimed at Microsoft Exchange servers exploits ProxyShell and ProxyLogon issues and uses stolen internal reply-chain emails to avoid detection. The campaign was uncovered by TrendMicro researchers that detailed the technique used to trick […]
Advanced Intelligence researchers argue that the restarting of the Emotet botnet was driven by Conti ransomware gang. Early this year, law enforcement and judicial authorities worldwide conducted a joint operation, named Operation Ladybird, which disrupted the EMOTET botnet. At the time the investigators have taken control of its infrastructure in an international coordinated action. This operation was […]
North Korea-linked TA406 APT group has intensified its attacks in 2021, particularly credential harvesting campaigns. A report published by Proofpoint revealed that the North Korea-linked TA406 APT group (Kimsuky, Thallium, and Konni, Black Banshee, Velvet Chollima) has intensified its operations in 2021. The TA406 cyber espionage group was first spotted by Kaspersky researchers in 2013. At the end of October […]
Researchers revealed that Conti ransomware operators earned at least $25.5 million from ransom payments since July 2021. A study conducted by Swiss security firm Prodaft with the support of blockchain analysis firm Elliptic revealed that the operators of the Conti ransomware have earned at least $25.5 million from attacks and subsequent ransoms carried out since […]
The BrazKing Android banking trojan is back with significant improvements and dynamic banking overlays to avoid detection. Researchers from IBM spotted a new version of the BrazKing Android banking trojan that pull fake overlay screens from the command and control (C2) server in real-time. In the previous version, BrazKing abused the accessibility service to detect which app […]
Researchers discovered threat actors installing a Linux backdoor on compromised e-commerce servers after deploying a credit card skimmer into e-stores. Security researchers from Sansec Threat Research Team discovered a Linux backdoor during an investigation into the compromised of an e-commerce server with a software skimmer. The attackers initially conducted a reconnaissance phase by probing the […]
The researchers at Microsoft Threat Intelligence Center (MSTIC) are warning of increasingly sophisticated operations carried out by Iranian threat actors. The Microsoft Threat Intelligence Center (MSTIC) shared the results of their analysis on the evolution of Iran-linked threat actors at the CyberWarCon 2021. Over the past 12 months, MSTIC experts observed increasingly sophisticated attacks orchestrated […]