Potential Credential Dumping Attempt Using New NetworkProvider - REG
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About the rule
Rule Type
Standard
Rule Description
Detects when an attacker tries to add a new network provider in order to dump clear text credentials, similar to how the NPPSpy tool does it
Severity
Trouble
Rule Requirement
Criteria
Action1: actionname = "Registry value modified" AND ((OBJECTNAME contains "\System\CurrentControlSet\Services" AND OBJECTNAME contains "\NetworkProvider") OR ((OBJECTNAME contains "\NetworkProvider" OR OBJECTVALUENAME contains "\NetworkProvider") OR (OBJECTNAME endswith "\System\CurrentControlSet\Services" AND isExist(OBJECTVALUENAME)))) AND ((OBJECTNAME notcontains "\System\CurrentControlSet\Services\WebClient\NetworkProvider,\System\CurrentControlSet\Services\LanmanWorkstation\NetworkProvider,\System\CurrentControlSet\Services\RDPNP\NetworkProvider" AND ((OBJECTNAME notendswith "\System\CurrentControlSet\Services\WebClient" OR OBJECTVALUENAME notstartswith "NetworkProvider") AND (OBJECTNAME notendswith "\System\CurrentControlSet\Services\LanmanWorkstation" OR OBJECTVALUENAME notstartswith "NetworkProvider") AND (OBJECTNAME notendswith "\System\CurrentControlSet\Services\RDPNP" OR OBJECTVALUENAME notstartswith "NetworkProvider"))) AND PROCESSNAME != "C:\Windows\System32\poqexec.exe") select Action1.HOSTNAME,Action1.MESSAGE,Action1.OBJECTNAME,Action1.PROCESSNAME,Action1.PREVVAL,Action1.CHANGES
Detection
Execution Mode
realtime
Log Sources
Windows
Author
Nasreddine Bencherchali (Nextron Systems)
