T1556
Modify Authentication Process
Also appears in: Persistence · Credential Access
Index entry
In-depth coverage of this technique (how it looks in telemetry, how to hunt it, and how to rule out benign activity) is coming soon. It's in our catalog and on the roadmap to be written up.
Telemetry needed
The log events that help detect this technique, from the Telemetry reference: which log source to collect, which event in it, and how to enable each one.
- AWS CloudTrail
- Other Azure sources (policy, VM guest, NSG flow) (the log as a whole)
- Linux audit framework (auditd)
- SYSCALL:execve SYSCALL record for execve
- SYSCALL:open SYSCALL record for open
- SYSCALL:write SYSCALL record for write
- Microsoft 365 Unified Audit Log (the log as a whole)
- osquery (macOS)
- macOS unified log (the log as a whole)
- Windows Security event log
- 4657 A registry value was modified.
- Sysmon