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Outlook Rules - T1137.005 (3d1b9d7e-3921-4d25-845a-7d9f15c0da44)

Adversaries may abuse Microsoft Outlook rules to obtain persistence on a compromised system. Outlook rules allow a user to define automated behavior to manage email messages. A benign rule might, for example, automatically move an email to a particular folder in Outlook if it contains specific words from a specific sender. Malicious Outlook rules can be created that can trigger code execution when an adversary sends a specifically crafted email to that user.(Citation: SilentBreak Outlook Rules)

Once malicious rules have been added to the user’s mailbox, they will be loaded when Outlook is started. Malicious rules will execute when an adversary sends a specifically crafted email to the user.(Citation: SilentBreak Outlook Rules)

Cluster A Galaxy A Cluster B Galaxy B Level
Office Application Startup - T1137 (2c4d4e92-0ccf-4a97-b54c-86d662988a53) Attack Pattern Outlook Rules - T1137.005 (3d1b9d7e-3921-4d25-845a-7d9f15c0da44) Attack Pattern 1