Unusual user-agent for a cloud identity

Synopsis

Field	Value
Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	5 Days
Required Data	Requires one of the following data sources: AWS Audit Log OR Azure Audit Log OR Gcp Audit Log
Detection Modules	Cloud
Detector Tags	OCI Analytics
ATT&CK Tactic	Initial Access (TA0001), Persistence (TA0003), Privilege Escalation (TA0004), Stealth (TA0005)
ATT&CK Technique	Valid Accounts: Cloud Accounts (T1078.004)
Severity	Informational

Description

A cloud identity has executed an API call with an unusual user-agent.

Attacker's Goals

Evade detection by using non-standard tools or scripts.

Investigative actions

• Examine the recent actions of the user for any abnormal or unauthorized behavior.
• Verify if the user intentionally used a new device or tool.

Variations

Unusual user-agent for a cloud identity by a compromised AWS access key

Synopsis

Field	Value
ATT&CK Tactic	Initial Access (TA0001), Persistence (TA0003), Privilege Escalation (TA0004), Stealth (TA0005)
ATT&CK Technique	Valid Accounts: Cloud Accounts (T1078.004)
Severity	Medium

Description

A cloud identity has executed an API call with an unusual user-agent.

Attacker's Goals

Evade detection by using non-standard tools or scripts.

Investigative actions

• Examine the recent actions of the user for any abnormal or unauthorized behavior.
• Verify if the user intentionally used a new device or tool.