Threat Intelligence Archives - RH-ISAC Blog

On March 24, 2023, Proofpoint released their report, “Account Compromise, Financial Theft, and Supply Chain Attacks: Analyzing the Small and Medium Business APT Phishing Landscape in 2023.” Context The report provides insight into key trends in the increasing prevalence of sophisticated advanced persistent threats (APTs) targeting small and medium-sized businesses (SMBs). Key Takeaways Key points…

On May 23, 2023, Cofense researchers reported a phishing campaign with threat actors leveraging paid time off (PTO) and vacation requests as a lure theme. Context The report is based on a Phishing Defence Center (PDC)-reported a phishing campaign where threat actors sent emails to users claiming to be from ‘HR Departments’ and providing the users with links…

Context On May 16, 2023, ZScaler threat researchers reported the technical details of a new ransomware-as-a-service (RaaS) operation they’ve observed being advertised on dark web forums. ZScaler researchers provided the following key takeaways: CryptNet is a new ransomware-as-a-service that has been advertised in underground forums since at least April 2023 The CryptNet threat group claims…

Context On May 4, 2023, VulnCheck researchers released a proof-of-concept (POC) exploit for CVE-2023-27350. According to the report, the exploit bypasses current detection options for attacks leveraging the vulnerability. Technical Details According to NIST, CVE-2023-27350 “allows remote attackers to bypass authentication on affected installations of PaperCut NG 22.0.5 (Build 63914). Authentication is not required to…

On April 26, 2023, BitDefender Labs researchers reported the technical details of a new custom malware named BellaCiao they attribute to the Iranian Charming Kitten advanced persistent threat (APT). Context According to the report, “This malware is tailored to suit individual targets and exhibits a higher level of complexity, evidenced by a unique communication approach…