Malformed user agent

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Malware authors will sometimes hardcode user agent string values when writing the network communication component of their malware. Malformed user agents can be an indication of such malware.

Attribute Value
Type Analytic Rule
Solution Standalone Content
ID a357535e-f722-4afe-b375-cff362b2b376
Severity Medium
Kind Scheduled
Tactics InitialAccess, CommandAndControl, Execution
Techniques T1189, T1071, T1203
Required Connectors WAF, Office365, AzureActiveDirectory, AzureActiveDirectory, AWS, AzureMonitor(IIS)
Source View on GitHub

Tables Used

This content item queries data from the following tables:

Table Transformations Ingestion API Lake-Only
AADNonInteractiveUserSignInLogs ?
AWSCloudTrail ?
AzureDiagnostics 🔶 ? ?
OfficeActivity ?
SigninLogs ?
W3CIISLog ?

Associated Connectors

The following connectors provide data for this content item:

Connector Solution
AWS Amazon Web Services
AzureActiveDirectory Microsoft Entra ID
ESI-Opt5ExchangeIISLogs Microsoft Exchange Security - Exchange On-Premises

Solutions: Amazon Web Services, Microsoft Entra ID, Microsoft Exchange Security - Exchange On-Premises


Browse: 🏠 · Solutions · Connectors · Methods · Tables · Content · Parsers · ASIM Parsers · ASIM Products · 📊

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