- Published
- Source
- The Hacker News
- Filed under
- Ransomware, Microsoft, Attacks
The suspected China-linked threat actor known as Warlock is still continuing to weaponize Microsoft SharePoint vulnerabilities, likely both old and new, in attacks targeting organizations in Portuguese- and Spanish-speaking countries. The activity, observed by the Symantec and Carbon Black Threat Hunter Team, has hit critical infrastructure, government, and education organizations. "In the…
What defenders check after a story like this
- Backups kept offline or immutable – and a restore you have actually tested.
- Multi-factor authentication on every remote way in, with VPNs and firewalls patched first.
- Alerts for the warning signs: new admin accounts, security tools switched off, mass file changes, large uploads.
More helpNCSC: mitigating malware and ransomware attacks (opens in a new tab)
Defender’s notebook
The attacker technique behind this story, in MITRE’s terms – and what to check in your own estate.
Data Encrypted for Impact
ImpactWhat a defender checks
- Isolate affected hosts from the network to stop the spread.
- Confirm backups are offline and restorable – then test a restore.
- Hunt for what came first: new admin accounts, disabled security tools, remote-access software.
Build the skillBlue Team Engineer · Incident Management & Response Engineering
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