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Vamshi B

@Vamshi789
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1 detection

This rule detects activity associated with the Chrysalis backdoor used by the Lotus Blossom threat group. It correlates multiple high-confidence indicators to identify potential compromise.

The detection focuses on three key behaviours:

Known malicious artifacts
File and process activity where the SHA256 hash matches confirmed Chrysalis malware samples.

Malicious network communications
Outbound connections to known Chrysalis command-and-control IP addresses or domains.

Suspicious svchost execution
Execution of svchost.exe from non-standard Windows directories, combined with unusual command-line arguments such as -nostdlib and -run, strongly suggests masquerading or malicious payload execution.
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Vamshi B@Vamshi789
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Detections.ai Community
9 months ago
161128