{"vulnerability": "CVE-2021-31221", "sightings": [{"uuid": "215d08d8-e52e-42ce-929f-8344a15ad1c1", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2021-31221", "type": "published-proof-of-concept", "source": "https://t.me/CyberSecurityTechnologies/3250", "content": "#Threat_Research\nIndicator of Compromise Scanner for CVE-2021-31221\nhttps://github.com/f1reeye/ioc-scanner-CVE-2021-31221\n// Features:\n- application log entries indicating successful exploitation\n- file system paths\u00a0of known dropped files\n- post-exploitation activity in\u00a0shell history\n- unexpected\u00a0crontab entries/scheduled tasks\n- ports\u00a0used by known malware", "creation_timestamp": "2021-04-30T11:02:06.000000Z"}, {"uuid": "3bc90f77-dc7b-4d5a-ba6a-16e11af692e5", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-31221", "type": "published-proof-of-concept", "source": "https://t.me/cissp/3083", "content": "", "creation_timestamp": "2026-09-11T08:00:07.873990Z"}, {"uuid": "49a003d1-5a85-4e23-a118-d6d88320e8eb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "4f29edb9-4c4b-44ca-b041-9b050656b6ae", "vulnerability": "CVE-2021-31221", "type": "seen", "source": "https://t.me/cissp/3083", "content": "", "creation_timestamp": "2026-09-01T17:00:52.438168Z"}]}