49 lines
1.9 KiB
Markdown
49 lines
1.9 KiB
Markdown
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# Self-Deleting Python Script
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---
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## Metadata
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- **Author:** Elastic
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- **Description:** Detects when a Python script is executed and then deletes itself within a short time window. This behavior is often observed in malware used by DPRK threat actors to remove traces post-execution and avoid detection.
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- **UUID:** `6461f45e-b03f-4756-94d2-34a210caeb78`
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- **Integration:** [endpoint](https://docs.elastic.co/integrations/endpoint)
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- **Language:** `[EQL]`
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- **Source File:** [Self-Deleting Python Script](../queries/defense_evasion_self_deleting_python_script.toml)
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## Query
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```sql
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sequence by process.entity_id with maxspan=10s
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[process where event.type == "start" and event.action == "exec" and
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process.name like~ "python*" and process.args_count == 2 and
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process.args like ("/Users/Shared/*.py", "/tmp/*.py", "/private/tmp/*.py", "/Users/*/Public/*.py")]
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[file where event.action == "deletion" and
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file.extension in ("py", "pyc") and
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file.path like ("/Users/Shared/*", "/tmp/*", "/private/tmp/*", "/Users/*/Public/*")]
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```
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## Notes
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- Self-deletion of Python scripts is commonly used to evade detection and forensic recovery.
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- This hunt is effective at uncovering ephemeral post-exploitation scripts or loaders.
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- You may pivot on `file.path`, `process.args`, and `process.executable` to understand intent and targets.
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## MITRE ATT&CK Techniques
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- [T1059.006](https://attack.mitre.org/techniques/T1059/006)
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- [T1070.004](https://attack.mitre.org/techniques/T1070/004)
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## References
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- https://www.elastic.co/security-labs/dprk-code-of-conduct
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- https://unit42.paloaltonetworks.com/slow-pisces-new-custom-malware/
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- https://slowmist.medium.com/cryptocurrency-apt-intelligence-unveiling-lazarus-groups-intrusion-techniques-a1a6efda7d34
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- https://x.com/safe/status/1897663514975649938
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- https://www.sygnia.co/blog/sygnia-investigation-bybit-hack/
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## License
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- `Elastic License v2`
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