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Storia in 4 fonti

HollowGraph Malware Hides C2 and Stolen Files in Microsoft 365 Events Dated 2050

HollowGraph uses Microsoft 365 calendar events dated to 2050 to receive commands and exfiltrate encrypted files through legitimate Graph API traffic.

Raccontata dathehackernews.comtheregister.combleepingcomputer.comsecurityweek.com

Confronto fonti

4 prospettive sulla stessa storia
AI · summaries
thehackernews.comStai leggendo2 g fa

HollowGraph Malware Hides C2 and Stolen Files in Microsoft 365 Events Dated 2050

HollowGraph uses Microsoft 365 calendar events dated to 2050 to receive commands and exfiltrate encrypted files through legitimate Graph API traffic.

originale
securityweek.com1 g fa

New HollowGraph Malware Abuses Microsoft 365 Calendar for C&C Communication

The HollowGraph malware abuses Microsoft Graph API and a compromised 365 account’s calendar for C&C communication.

Leggi questa versione → originale
bleepingcomputer.com2 g fa

New HollowGraph malware uses Microsoft Graph for stealthy C2 comms

A malicious component dubbed HollowGraph uses the calendar feature in compromised Microsoft 365 mailboxes as a command-and-control channel to receive attacker commands and exfiltrate stolen data.

Leggi questa versione → originale
theregister.com2 g fa

Microsoft 365 calendars become spy drop boxes in HOLLOWGRAPH campaign

Malware hides commands in appointments set for 2050 and uses Redmond's own cloud to phone home

Leggi questa versione → originale

Timeline cronologica

  1. lunedì 20 luglio 2026·thehackernews.com

    HollowGraph Malware Hides C2 and Stolen Files in Microsoft 365 Events Dated 2050

    HollowGraph uses Microsoft 365 calendar events dated to 2050 to receive commands and exfiltrate encrypted files through legitimate Graph API traffic.

  2. lunedì 20 luglio 2026·theregister.com

    Microsoft 365 calendars become spy drop boxes in HOLLOWGRAPH campaign

    Malware hides commands in appointments set for 2050 and uses Redmond's own cloud to phone home

  3. lunedì 20 luglio 2026·bleepingcomputer.com

    New HollowGraph malware uses Microsoft Graph for stealthy C2 comms

    A malicious component dubbed HollowGraph uses the calendar feature in compromised Microsoft 365 mailboxes as a command-and-control channel to receive attacker commands and…

  4. martedì 21 luglio 2026·securityweek.com

    New HollowGraph Malware Abuses Microsoft 365 Calendar for C&C Communication

    The HollowGraph malware abuses Microsoft Graph API and a compromised 365 account’s calendar for C&C communication.