Security Affairs newsletter Round 386

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CISA adds Atlassian Bitbucket Server flaw to its Known Exploited Vulnerabilities Catalog
Guacamaya hacktivists stole sensitive data from Mexico and Latin American countries
Luxury hotel chain Shangri-La suffered a security breach
Witchetty APT used steganography in attacks against Middle East entities
US DoD announced the results of the Hack US bug bounty challenge
Microsoft confirms Exchange zero-day flaws actively exploited in the wild
Unpatched Microsoft Exchange Zero-Day actively exploited in the wild
Experts uncovered novel Malware persistence within VMware ESXi Hypervisors
Hacker groups support protestors in Iran using Telegram, Signal and Darkweb
A cracked copy of Brute Ratel post-exploitation tool leaked on hacking forums
Go-based Chaos malware is rapidly growing targeting Windows, Linux and more
Threat actors use Quantum Builder to deliver Agent Tesla malware
ONLINE DISINFORMATION: Under the hood of a Doppelgänger
APT28 relies on PowerPoint Mouseover to deliver Graphite malware
Bl00dy ransomware gang started using leaked LockBit 3.0 builder in attacks
NUVOLA: the new Cloud Security tool
Meta dismantled the largest Russian network since the war in Ukraine began
North Korea-linked Lazarus continues to target job seekers with macOS malware
Defense firm Elbit Systems of America discloses data breach
WhatsApp fixed critical and high severy vulnerabilities
Erbium info-stealing malware, a new option in the threat landscape
Mandiant identifies 3 hacktivist groups working in support of Russia
Russia prepares massive cyberattacks on the critical infrastructure of Ukraine and its allies
China-linked TA413 group targets Tibetan entities with new backdoor
Metador, a never-before-seen APT targeted ISPs and telco for about 2 years
Exmatter exfiltration tool used to implement new extortion tactics
Attackers impersonate CircleCI platform to compromise GitHub accounts
OpIran: Anonymous declares war on Teheran amid Mahsa Amini’s death

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Pierluigi Paganini

(SecurityAffairs – hacking, newsletter)

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