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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Pierluigi Paganini: Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.

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