ATT&CK coverage › Technique
OS Credential Dumping T1003
Adversaries may attempt to dump credentials to obtain account login and credential material, normally in the form of a hash or a clear text password. Credentials can be obtained from OS caches, memory, or structures. Credentials can then be used to perform Lateral Movement and access restricted information.
Events covered
18 catalog events are tagged with this technique by at least one rule.
Authoring guide
Patterns shared across the 46 rules above: which fields they filter on, what specific values they look for, and what they exclude. Field names are normalized across vendors so Sigma's Image, Elastic's process.name, and Splunk's process_name collapse into one row. Each rule contributes at most once per row.
Fields filtered most (45 distinct)
The fields most rules look at when detecting this technique. The How column shows the operators authors use (eq, wildcard, regex_match, match) and how often each appears. Sample values are concrete examples to start from, not an exhaustive list.
Top indicator values (381 distinct)
Specific (field, operator, value) combinations the rules check for, ranked by how many rules under this technique use each one. The Corpus reach column counts how many rules across the entire catalog (any technique) check the same combination. High numbers point to widely-used indicators that are likely noisy on their own; combine them with another condition for useful signal. Blank means the combination is specific to rules under this technique.
Common exclusions (61 distinct)
Field/operator/value combinations that rules under this technique routinely exclude (top-level not() clauses). These are the false-positive paths the community has learned to filter out. A new rule that ignores the high-count entries here will likely fire on the same noisy paths.
Rules under this technique
Every rule in the catalog tagged with this technique, grouped by vendor. Click a rule title for its full predicates, exclusions, and indicators.
Sigma 22 rules
- Capture Credentials with Rpcping.exe
- Esentutl Gather Credentials
- File Access Of Signal Desktop Sensitive Data
- HackTool - Potential Remote Credential Dumping Activity Via CrackMapExec Or Impacket-Secretsdump
- HackTool - Rubeus Execution
- HackTool - Rubeus Execution - ScriptBlock
- Hacktool Execution - Imphash
- Hacktool Execution - PE Metadata
- Interesting Service Enumeration Via Sc.EXE
- Live Memory Dump Using Powershell
- Loaded Module Enumeration Via Tasklist.EXE
- Microsoft IIS Connection Strings Decryption
- Microsoft IIS Service Account Password Dumped
- Potential Credential Dumping Attempt Using New NetworkProvider - CLI
- Potential Credential Dumping Attempt Using New NetworkProvider - REG
- Potential Credential Dumping Via LSASS Process Clone
- Potential Invoke-Mimikatz PowerShell Script
- Potentially Suspicious ODBC Driver Registered
- Shadow Copies Creation Using Operating Systems Utilities
- Suspicious Loading of Dbgcore/Dbghelp DLLs from Uncommon Location
- Suspicious SYSTEM User Process Creation
- WCE wceaux.dll Access
Elastic 14 rules
- Access to a Sensitive LDAP Attribute
- FirstTime Seen Account Performing DCSync
- LSASS Memory Dump Handle Access
- Multiple Vault Web Credentials Read
- Potential Active Directory Replication Account Backdoor
- Potential Credential Access via DCSync
- Potential Credential Access via DuplicateHandle in LSASS
- Potential Credential Access via LSASS Memory Dump
- Potential Credential Access via Renamed COM+ Services DLL
- Potential LSASS Clone Creation via PssCaptureSnapShot
- Potential LSASS Memory Dump via PssCaptureSnapShot
- Suspicious LSASS Access via MalSecLogon
- Suspicious Lsass Process Access
- Suspicious Remote Registry Access via SeBackupPrivilege
Splunk 4 rules
- Detect Mimikatz With PowerShell Script Block Logging
- Enable WDigest UseLogonCredential Registry
- PetitPotam Suspicious Kerberos TGT Request
- Windows Remote Access Software BRC4 Loaded Dll