Taint Shared Content T1080

Tactic: Lateral Movement

Adversaries may deliver payloads to remote systems by adding content to shared storage locations, such as network drives or internal code repositories. Content stored on network drives or in other shared locations may be tainted by adding malicious programs, scripts, or exploit code to otherwise valid files. Once a user opens the shared tainted content, the malicious portion can be executed to run the adversary's code on a remote system. Adversaries may use tainted shared content to move laterally.

Events covered

2 catalog events are tagged with this technique by at least one rule.

Authoring guide

Patterns shared across the 4 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 (7 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.

FieldRulesHowSample values
EventID4eq 4SharePointFileOperation, 1, 4688
EventType2eq 2FileMalwareDetected
Provider_Name2eq 2OneDrive, SharePoint
data_stream.dataset2eq 2o365.audit
parent_process_name2regex_match 2(?i)\x5cUsers\x5cPublic\x5c\.exe
process_name2regex_match 2(?i)\x5cappdata\x5clocal\x5ctemp\x5c.+\.tmp
Type1eq 1

Top indicator values (9 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.

FieldKindValueRules (here)Corpus reach
EventIDeq
SharePointFileOperation
22
EventIDeq
1
1237
EventIDeq
4688
1313
EventTypeeq
FileMalwareDetected
22
data_stream.dataseteq
o365.audit
245
parent_process_nameregex_match
(?i)\x5cUsers\x5cPublic\x5c\.exe
22
process_nameregex_match
(?i)\x5cappdata\x5clocal\x5ctemp\x5c.+\.tmp
22
Provider_Nameeq
OneDrive
12
Provider_Nameeq
SharePoint
12

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.

Platform (all)
Domain (all)

Elastic 2 rules

Splunk 2 rules