PowerExchange

Description

(Symantec) PowerShell-based malware that can log into an Exchange Server with hardcoded credentials and monitor for emails sent by the attackers. It uses an Exchange Server as a C&C. Mails received with ’@@’ in the subject contain commands sent from the attackers which allows them to execute arbitrary PowerShell commands, write files and steal files. The malware creates an Exchange rule (called ‘defaultexchangerules’) to filter these messages and move them to the Deleted Items folder automatically.

Names

Name
PowerExchange

Category

Malware

Type

  • Backdoor

Information

Mitre Attack

Other Information

Uuid

0762792c-0150-4a3c-965d-c3e6d5f23ff1

Last Card Change

2025-06-28