TLP TLP TLP CLEAR Author Jordi M. Lobo Summary A new ransomware variant has emerged as part of the Adhubllka ransomware family, targeting individuals and small enterprises with smaller ransom demands to evade media attention. The ransomware spreads via phishing emails and employs a victim portal on Tor for decryption key delivery after ransom payment….
TLP TLP TLP CLEAR Author David Deflache Summary Microsoft has detected China-linked state-sponsored group HAFNIUM using zero-day exploits to target on-premises Microsoft Exchange Servers. The group gained access to servers, email accounts, and installed malware. Vulnerabilities CVE-2021-26855, -26857, -26858, and -27065 were patched in the latest release. Exchange Online is unaffected. HAFNIUM’s targets include US…
TLP TLP TLP CLEAR Author David Deflache Summary This case involves a sophisticated intrusion that occurred over an 11-day period. The threat actors initiated the attack by sending an email with a link to download a password-protected zip file containing an ISO file. Upon extraction, the ISO file mounted as a CD and executed a…
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