GitHub Repo

Exfiltration Detections

Name Data Source Technique Type Analytic Story Date
Windows Exfiltration Over C2 Via Invoke RestMethod Powershell Script Block Logging 4104 T1041 TTP Hellcat Ransomware, APT37 Rustonotto and FadeStealer, Winter Vivern, Water Gamayun, Microsoft WSUS CVE-2025-59287 2026-05-13
Linux Auditd Data Transfer Size Limits Via Split Linux Auditd Execve T1030 Anomaly Linux Persistence Techniques, Linux Privilege Escalation, Hellcat Ransomware, Compromised Linux Host, Linux Living Off The Land 2026-05-13
Windows OneDrive Share Mounted via Net CrowdStrike ProcessRollup2, Sysmon EventID 1, Windows Event Log Security 4688 T1567.002 Anomaly Data Exfiltration 2026-05-13
LOLBAS With Network Traffic Sysmon EventID 3 T1105 T1218 T1567 TTP Living Off The Land, Hellcat Ransomware, Malicious Inno Setup Loader, APT37 Rustonotto and FadeStealer, GhostRedirector IIS Module and Rungan Backdoor, NetSupport RMM Tool Abuse, Fake CAPTCHA Campaigns, Water Gamayun 2026-05-13
Excessive Usage of NSLOOKUP App CrowdStrike ProcessRollup2, Sysmon EventID 1, Windows Event Log Security 4688 T1048 Anomaly Data Exfiltration, Command And Control, Suspicious DNS Traffic, Dynamic DNS 2026-05-13
Windows Exfiltration Over C2 Via Powershell UploadString Powershell Script Block Logging 4104 T1041 TTP Winter Vivern, APT37 Rustonotto and FadeStealer 2026-05-13
Windows Network Connection From Program In Suspect Location Sysmon EventID 3 T1011 Anomaly Compromised Windows Host 2026-05-13
Potential Telegram API Request Via CommandLine CrowdStrike ProcessRollup2, Sysmon EventID 1, Windows Event Log Security 4688 T1041 T1102.002 Anomaly Hellcat Ransomware, BlankGrabber Stealer, XMRig, 0bj3ctivity Stealer, Water Gamayun 2026-05-13
Windows Gdrive Binary Activity CrowdStrike ProcessRollup2, Sysmon EventID 1, Windows Event Log Security 4688 T1567 TTP China-Nexus Threat Activity 2026-05-13
DNS Exfiltration Using Nslookup App CrowdStrike ProcessRollup2, Sysmon EventID 1, Windows Event Log Security 4688 T1048 TTP Dynamic DNS, Command And Control, Compromised Windows Host, Data Exfiltration, Suspicious DNS Traffic 2026-05-13
Windows Mustang Panda USB Tool Execution CrowdStrike ProcessRollup2, Sysmon EventID 1, Windows Event Log Security 4688 T1020 T1204.002 T1574.001 TTP Compromised Windows Host 2026-05-13
Windows Rundll32 WebDAV Request CrowdStrike ProcessRollup2, Sysmon EventID 1, Windows Event Log Security 4688 T1048.003 Hunting CVE-2023-23397 Outlook Elevation of Privilege 2026-05-13
Windows Rundll32 WebDav With Network Connection Sysmon EventID 1, Sysmon EventID 3 T1048.003 TTP CVE-2023-23397 Outlook Elevation of Privilege 2026-05-13
Detect Renamed RClone CrowdStrike ProcessRollup2, Sysmon EventID 1, Windows Event Log Security 4688 T1020 Hunting DarkSide Ransomware, Cactus Ransomware, Black Basta Ransomware, Ransomware 2026-05-13
Linux Auditd Data Transfer Size Limits Via Split Syscall Linux Auditd Syscall T1030 Anomaly Linux Persistence Techniques, Linux Privilege Escalation, Linux Living Off The Land, Compromised Linux Host 2026-05-13
Windows Azure Storage Utility Execution Via CLI CrowdStrike ProcessRollup2, Sysmon EventID 1, Windows Event Log Security 4688 T1567.002 Anomaly Data Exfiltration 2026-05-13
Linux Gdrive Binary Activity Sysmon for Linux EventID 1 T1567 TTP China-Nexus Threat Activity 2026-05-13
MacOS Data Chunking Osquery Results T1030 Anomaly MacOS Post-Exploitation 2026-05-13
High Frequency Copy Of Files In Network Share Windows Event Log Security 5145 T1537 Anomaly Information Sabotage, Insider Threat, Hellcat Ransomware 2026-05-13
Detect RClone Command-Line Usage CrowdStrike ProcessRollup2, Sysmon EventID 1, Windows Event Log Security 4688, Cisco Network Visibility Module Flow Data T1020 TTP Hellcat Ransomware, Ransomware, Cisco Network Visibility Module Analytics, DarkSide Ransomware, Storm-0501 Ransomware, Cactus Ransomware, Black Basta Ransomware 2026-05-13
Cisco NVM - Rclone Execution With Network Activity Cisco Network Visibility Module Flow Data T1567.002 Anomaly Scattered Lapsus$ Hunters, Cisco Network Visibility Module Analytics 2026-05-13
High Volume of Bytes Out to Url Nginx Access T1567 Anomaly Hellcat Ransomware, Data Exfiltration 2026-05-13
Plain HTTP POST Exfiltrated Data Splunk Stream HTTP T1048.003 TTP Data Exfiltration, Command And Control, APT37 Rustonotto and FadeStealer 2026-05-13
Multiple Archive Files Http Post Traffic Splunk Stream HTTP T1048.003 TTP Hellcat Ransomware, Data Exfiltration, Command And Control, APT37 Rustonotto and FadeStealer 2026-05-13
Cisco ASA - Device File Copy to Remote Location Cisco ASA Logs T1005 T1041 T1048.003 Anomaly Suspicious Cisco Adaptive Security Appliance Activity, ArcaneDoor 2026-05-13
Ollama Possible Model Exfiltration Data Leakage Ollama Server T1048 Anomaly Suspicious Ollama Activities 2026-05-13
Gsuite Drive Share In External Email G Suite Drive T1567.002 Anomaly Insider Threat, Scattered Lapsus$ Hunters, Dev Sec Ops 2026-05-13
AWS Exfiltration via Bucket Replication AWS CloudTrail PutBucketReplication T1537 TTP Data Exfiltration, Suspicious AWS S3 Activities 2026-05-13
AWS Exfiltration via EC2 Snapshot AWS CloudTrail DescribeSnapshotAttribute, AWS CloudTrail DeleteSnapshot, AWS CloudTrail ModifySnapshotAttribute, AWS CloudTrail CreateSnapshot T1537 TTP Data Exfiltration, Suspicious Cloud Instance Activities 2026-05-13
O365 DLP Rule Triggered Office 365 Universal Audit Log T1048 T1567 Anomaly Data Exfiltration 2026-05-13
AWS EC2 Snapshot Shared Externally AWS CloudTrail ModifySnapshotAttribute T1537 TTP Data Exfiltration, Suspicious Cloud Instance Activities 2026-05-13
O365 Exfiltration via File Sync Download Office 365 Universal Audit Log T1530 T1567 Anomaly Office 365 Account Takeover, Data Exfiltration 2026-05-13
AWS AMI Attribute Modification for Exfiltration AWS CloudTrail ModifyImageAttribute T1537 TTP Data Exfiltration, Suspicious Cloud Instance Activities 2026-05-13
AWS S3 Exfiltration Behavior Identified T1537 Correlation Data Exfiltration, Suspicious Cloud Instance Activities 2026-05-13
ASL AWS EC2 Snapshot Shared Externally ASL AWS CloudTrail T1537 TTP Data Exfiltration, Suspicious Cloud Instance Activities 2026-05-13
O365 Exfiltration via File Access Office 365 Universal Audit Log T1530 T1567 Anomaly Office 365 Account Takeover, Data Exfiltration 2026-05-13
Gsuite Outbound Email With Attachment To External Domain G Suite Gmail T1048.003 Hunting Insider Threat, Dev Sec Ops 2026-05-13
O365 Email Access By Security Administrator Office 365 Universal Audit Log T1114.002 T1567 TTP Office 365 Account Takeover, Data Exfiltration, Azure Active Directory Account Takeover 2026-05-13
O365 Exfiltration via File Download Office 365 Universal Audit Log T1530 T1567 Anomaly Office 365 Account Takeover, Data Exfiltration 2026-05-13
Prohibited Network Traffic Allowed Cisco Secure Firewall Threat Defense Connection Event T1048 TTP Command And Control, Prohibited Traffic Allowed or Protocol Mismatch, Cisco Secure Firewall Threat Defense Analytics, Ransomware 2026-05-13
Cisco Secure Firewall - Lumma Stealer Outbound Connection Attempt Cisco Secure Firewall Threat Defense Intrusion Event T1041 T1573.002 Anomaly Cisco Secure Firewall Threat Defense Analytics, Lumma Stealer 2026-05-13
DNS Query Length With High Standard Deviation Sysmon EventID 22 T1048.003 Anomaly Command And Control, Hidden Cobra Malware, Suspicious DNS Traffic 2026-05-13
Cisco Secure Firewall - Intrusion Events by Threat Activity Cisco Secure Firewall Threat Defense Intrusion Event T1041 T1573.002 Anomaly Cisco Secure Firewall Threat Defense Analytics, ArcaneDoor 2026-05-13
Cisco Secure Firewall - Potential Data Exfiltration Cisco Secure Firewall Threat Defense Connection Event T1041 T1048.003 T1567.002 Anomaly Cisco Secure Firewall Threat Defense Analytics 2026-05-13
Cisco TFTP Server Configuration for Data Exfiltration Cisco IOS Logs T1005 T1567 TTP Cisco Smart Install Remote Code Execution CVE-2018-0171 2026-05-13
Detect SNICat SNI Exfiltration T1041 TTP Data Exfiltration 2026-05-13
Cisco Secure Firewall - Lumma Stealer Download Attempt Cisco Secure Firewall Threat Defense Intrusion Event T1041 T1573.002 Anomaly Cisco Secure Firewall Threat Defense Analytics, Lumma Stealer 2026-05-13
Cisco Secure Firewall - High EVE Threat Confidence Cisco Secure Firewall Threat Defense Connection Event T1041 T1071.001 T1105 T1573.002 Anomaly Cisco Secure Firewall Threat Defense Analytics 2026-05-13
Protocol or Port Mismatch Cisco Secure Firewall Threat Defense Connection Event T1048.003 Anomaly Command And Control, Prohibited Traffic Allowed or Protocol Mismatch, Cisco Secure Firewall Threat Defense Analytics 2026-05-13
Detect Traffic Mirroring Cisco IOS Logs T1020.001 T1200 T1498 TTP Router and Infrastructure Security 2026-05-13
Cisco Secure Firewall - Connection to File Sharing Domain Cisco Secure Firewall Threat Defense Connection Event T1071.001 T1090.002 T1105 T1567.002 T1588.002 Anomaly Scattered Lapsus$ Hunters, Cisco Secure Firewall Threat Defense Analytics 2026-05-13