Exploitation for Credential Access T1212
Tactic: Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials. Exploitation of a software vulnerability occurs when an adversary takes advantage of a programming error in a program, service, or within the operating system software or kernel itself to execute adversary-controlled code.
Events covered
9 catalog events are tagged with this technique by at least one rule.
Authoring guide
Patterns shared across the 20 rules above: which fields they filter on, what specific values they look for, and what they exclude. The catalog normalizes field names 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 (39 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 (204 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. Click a value to expand the rules under this technique that use it.
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 5 rules
- Audit CVE Event
- GALLIUM IOCs
- Guacamole Two Users Sharing Session Anomaly
- Kerberos Manipulation
- Suspicious NTLM Authentication on the Printer Spooler Service
Elastic 4 rules
- Manual Memory Dumping via Proc Filesystem
- Potential Linux Credential Dumping via Proc Filesystem
- Potential Local NTLM Relay via HTTP
- Segfault from Sensitive Process Detected
Splunk 3 rules
- Kubernetes Nginx Ingress LFI
- Kubernetes Nginx Ingress RFI
- Windows ConvertTo-AADIntBackdoor Execution Via PowerShell Script
Kusto 8 rules
- Azure secure score block legacy authentication
- Azure VM Run Command operation executed during suspicious login window
- Dataverse - Login by a sensitive privileged user
- Detect device token stealing with WDAC
- GitHub Security Vulnerability in Repository
- Pure Failed Login
- Threats detected by Eset
- Unauthorized user access across AWS and Azure