Automated Exfiltration T1020
Tactic: Exfiltration
Adversaries may exfiltrate data, such as sensitive documents, through the use of automated processing after being gathered during Collection.
Events covered
4 catalog events are tagged with this technique by at least one rule.
| Provider | Event | Title |
|---|---|---|
| Sysmon | Event ID 1 | Process creation |
| Security-Auditing | Event ID 4688 | A new process has been created. |
| Defender-DeviceEvents | AmsiScriptContent | AMSI script content captured |
| PowerShell | Event ID 4104 | Creating Scriptblock text (MessageNumber of MessageTotal). |
Authoring guide
These 53 rules share fields, values, and exclusions.
Fields filtered most (58 distinct)
These fields appear most often in rule filters.
Top indicator values (239 distinct)
These values appear most often in rule predicates.
Exclusions (6 distinct)
These values appear most often in top-level exclusions.
Rules under this technique
These vendors publish rules tagged with this technique.
Sigma 10 rules
- AWS RDS Master Password Change
- Github Fork Private Repositories Setting Enabled/Cleared
- Github Repository/Organization Transferred
- Mail Forwarding/Redirecting Activity In O365
- Mail Forwarding/Redirecting Activity Via ExchangePowerShell Cmdlet
- Modification or Deletion of an AWS RDS Cluster
- PowerShell Script With File Hostname Resolving Capabilities
- PowerShell Script With File Upload Capabilities
- Restore Public AWS RDS Instance
- Suspicious Inbox Forwarding
Elastic 7 rules
- AWS EC2 Full Network Packet Capture Detected
- GitHub Exfiltration via High Number of Repository Clones by User
- GitHub Private Repository Turned Public
- High Number of Closed Pull Requests by User
- High Number of Protected Branch Force Pushes by User
- M365 OneDrive/SharePoint Excessive File Downloads
- Several Failed Protected Branch Force Pushes by User
Splunk 7 rules
- Detect RClone Command-Line Usage
- Detect Renamed RClone
- Detect Traffic Mirroring
- Executable Create Script Process (PowerShell)
- Executable Create Script Process (Sysmon)
- Executable Create Script Process (Windows Event Log)
- Windows Mustang Panda USB Tool Execution
Kusto 23 rules
- A host is potentially running a hacking tool (ASIM Web Session schema)
- API - BOLA
- Cisco Cloud Security - Hack Tool User-Agent Detected
- Claroty - Suspicious file transfer
- Deimos Component Execution
- Mail redirect via ExO transport rule
- Multiple users email forwarded to same destination
- NordPass - Domain data detected in breach
- NordPass - User data detected in breach
- NordPass - Vault export
- NRT Multiple users email forwarded to same destination
- Office365 Sharepoint File transfer above threshold
- Office365 Sharepoint File transfer Folders above threshold
- Progress MOVEIt File transfer above threshold
- Progress MOVEIt File transfer folder count above threshold
- Server Oriented Cmdlet And User Oriented Cmdlet used
- SFTP File transfer above threshold
- SFTP File transfer folder count above threshold
- Tailscale Premium: Large outbound transfer over tailnet
- Third party integrated apps
- Threat Essentials - Mail redirect via ExO transport rule
- Users searching for VIP user activity
- VIP Mailbox manipulation