Notepad Plus Plus Updater DNS Query to Uncommon Domains
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About the rule
Rule Type
Standard
Rule Description
Detects when the Notepad++ updater (gup.exe) makes DNS queries to domains that are not part of the known legitimate update infrastructure.
Severity
Attention
Rule Requirement
Criteria
Action1:
actionname = "DNS Query Executed" AND (PROCESSNAME endswith "\GUP.exe" AND QUERY notcontains "notepad-plus-plus.org,notepadpp.org,localhost,.local,.internal,.corp,.lan,127.,192.168.,.sourceforge.net,.githubusercontent.com,github.com,.googleapis.com,.azurewebsites.net")
select Action1.HOSTNAME,Action1.MESSAGE,Action1.PROCESSNAME,Action1.QUERY,Action1.STATUSCODE,Action1.RESULT
Detection
Execution Mode
realtime
Log Sources
Windows
Author
@Swachchhanda Shrawan Poudel (Nextron Systems)
