- Published
- Source
- SecurityWeek
- Filed under
- Nation-state, Attacks
- Technique
- T1566 Phishing (opens in a new tab)
The state-sponsored group has launched larger-scale phishing campaigns to deploy the CosmicPulse backdoor.
Defending against state-backed attackers
- Patch internet-facing devices first – VPNs, firewalls and email gateways are their usual way in.
- Hunt for the published indicators and techniques in your own logs, not just in your antivirus.
- Read the joint advisories: they name the products, the techniques and the signs to look for.
Defender’s notebook
The attacker technique behind this story, in MITRE’s terms – and what to check in your own estate.
Phishing
Initial AccessWhat a defender checks
- Search mail flow for the sender, subject and links, and pull every copy from mailboxes.
- Check who clicked or replied, and what signed in afterwards.
- Block the sender and URLs, and tell staff what to look for.
Build the skillBlue Team Analyst · Email & Phishing Investigation
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