Suspicious MSExchangeMailboxReplication ASPX Write
Last updated on:
Applies to: Log360Log360 Cloud
In this page
About the rule
Rule Type
Standard
Rule Description
Detects suspicious activity in which the MSExchangeMailboxReplication process writes .asp and .apsx files to disk, which could be a sign of ProxyShell exploitation
Severity
Trouble
Rule Requirement
Criteria
Action1:
actionname = "File Created or Modified" AND PROCESSNAME endswith "\MSExchangeMailboxReplication.exe" AND (FILENAME endswith ".aspx,.asp" OR OBJECTNAME endswith ".aspx,.asp")
select Action1.HOSTNAME,Action1.MESSAGE,Action1.USERNAME,Action1.DOMAIN,Action1.OBJECTNAME,Action1.FILENAME,Action1.PROCESSNAME,Action1.FILETYPE,Action1.ACCESSLIST
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Florian Roth (Nextron Systems)
