ATT&CK coverage › Technique
Indicator Removal: File Deletion T1070.004
Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary's footprint.
Events covered
10 catalog events are tagged with this technique by at least one rule.
Authoring guide
Patterns shared across the 15 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 (10 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 (57 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.
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 11 rules
- ADS Zone.Identifier Deleted By Uncommon Application
- Backup Catalog Deleted
- Directory Removal Via Rmdir
- File Deleted Via Sysinternals SDelete
- File Deletion Via Del
- Greedy File Deletion Using Del
- Potential Secure Deletion with SDelete
- Potentially Suspicious Ping/Copy Command Combination
- Prefetch File Deleted
- Suspicious Ping/Del Command Combination
- TeamViewer Log File Deleted