Detection rules › Sigma
DNS Query To Ufile.io - DNS Client
Detects DNS queries to "ufile.io", which was seen abused by malware and threat actors as a method for data exfiltration
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Exfiltration | T1567.002 Exfiltration Over Web Service: Exfiltration to Cloud Storage |
Event coverage
| Provider | Event ID | Title |
|---|---|---|
| DNS-Client | 3008 | DNS query is completed for the name QueryName, type QueryType, query options QueryOptions with status QueryStatus Results QueryResults. |
Stages and Predicates
Stage 1: selection
QueryName|contains: ufile.io
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
QueryName | match |
|
Neighbors
Broader alternatives (more inclusive than this rule)
These rules match a superset of what this rule catches. They cover the same events plus more. Use them if you want wider coverage and can absorb more false positives.
- Suspicious Cobalt Strike DNS Beaconing - DNS Client (drops 1 filter this rule applies)