Large-scale brute-force activity targeting VPNs, SSH services with commonly used login credentials
Cisco Talos would like to acknowledge Brandon White of Cisco Talos and Phillip Schafer, Mike Moran, and Becca Lynch of the Duo Security Research team for their research that led to the identification of these attacks. Cisco Talos is actively monitoring a global increase in brute
Starry Addax targets human rights defenders in North Africa with new malware
Cisco Talos is disclosing a new threat actor we deemed “Starry Addax” targeting mostly human rights activists, associated with the Sahrawi Arab Democratic Republic (SADR) cause with a novel mobile malware.
New Zardoor backdoor used in long-term cyber espionage operation targeting an Islamic organization
Talos discovered a new, stealthy espionage campaign that has likely persisted since at least March 2021. The observed activity affects an Islamic non-profit organization using backdoors for a previously unreported malware family we have named “Zardoor.”
The malware, attacker trends and more that shaped the threat landscape in 2023
The second annual Cisco Talos Year in Review draws on a massive amount of threat data to analyze the major trends that shaped the threat landscape in 2023.
Arid Viper disguising mobile spyware as updates for non-malicious Android applications
Since April 2022, Cisco Talos has been tracking a malicious campaign operated by the espionage-motivated Arid Viper advanced persistent threat (APT) group targeting Arabic-speaking Android users.
9 vulnerabilities found in VPN software, including 1 critical issue that could lead to remote code execution
Attackers could exploit these vulnerabilities in the SoftEther VPN solution for individual and enterprise users to force users to drop their connections or execute arbitrary code on the targeted machine.
Why logging is one of the most overlooked aspects of incident response, and how Cisco Talos IR can help
As the adoption of digital technologies increases, the volume of log data grows, which makes it challenging for cybersecurity teams to identify which logs are most valuable when investigating and analyzing threats.
Active exploitation of Cisco IOS XE Software Web Management User Interface vulnerabilities
Cisco has identified active exploitation of two previously unknown vulnerabilities in the Web User Interface (Web UI) feature of Cisco IOS XE software — CVE-2023-20198 and CVE-2023-20273 — when exposed to the internet or untrusted networks.
What to know about the HTTP/2 Rapid Reset DDoS attacks
CVE-2023-44487, a vulnerability in the HTTP/2 protocol, was recently used to launch intensive DDoS attacks against several targets.