Quarterly Report: Incident Response Trends in Q4 2022

Syncro, a remote management and monitoring tool, emerges as an increasingly common tool for adversaries. By Caitlin Huey. Ransomware continued to be a top threat Cisco Talos Incident Response (Talos IR) responded to this quarter, with appearances from both previously seen and newly observed ransomware families. However, IR also observed a significant number of cases […]

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Critical Remote Code Execution issue impacts popular post-exploitation toolkit Cobalt Strike

HelpSystems, the company that developed the Cobalt Strike platform, addressed a critical remote code execution vulnerability in its software. HelpSystems, the company that developed the commercial post-exploitation toolkit Cobalt Strike, addressed a critical remote code execution vulnerability, tracked as CVE-2022-42948, in its platform. The company released an out-of-band security update to address the remote code […]

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Manjusaka: A Chinese sibling of Sliver and Cobalt Strike

By Asheer Malhotra and Vitor Ventura. Cisco Talos recently discovered a new attack framework called “Manjusaka” being used in the wild that has the potential to become prevalent across the threat landscape. This framework is advertised as an imitation of the Cobalt Strike framework. The implants for the new malware family are written in the […]

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New Matanbuchus Campaign drops Cobalt Strike beacons

Matanbuchus malware-as-a-service (Maas) has been observed spreading through phishing campaigns, dropping Cobalt Strike beacons. Threat intelligence firm Cyble has observed a malware-as-a-service (Maas), named Matanbuchus, involved in malspam attacks dropping Cobalt Strike beacons. Matanbuchus is a malware loader that first appeared on the threat landscape in February 2021, when it was offered for rent on Russian-speaking […]

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Phishing attacks using the topic “Azovstal” targets entities in Ukraine

Ukraine CERT-UA warns of phishing attacks on state organizations of Ukraine using the topic “Azovstal” and Cobalt Strike Beacon. The Computer Emergency Response Team of Ukraine (CERT-UA) warns of phishing attacks aimed at organizations in the country using the topic “Azovstal”. The phishing message use the subject “Azovstal” and a weaponized office document. Upon opening […]

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