Shrew / pulsing DoS
Short synchronised bursts exploit TCP retransmission timeouts
categoryNetwork and infrastructure attacksseverityMediumdetectabilityHighlabnot yet measured
Classification
23 values: 11 imported, 1 derived, 11 machine-classified. What do these mean?
Exploitability
| Attack vector | Network attacks |
|---|---|
| Reach (CVSS) | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Attacker skill required | High |
| Resources required | Low |
| Likelihood / prevalence | Low |
| Maturity | Proof of concept |
Impact & scope
| Severity | Medium |
|---|---|
| Impact | Availability |
| Platform | ContainersIaaSLinuxmacOSWindows |
| Environment | On-premises |
| Target asset class | Network device |
| Kill-chain phase (tactic) | Impact |
Detection & telemetry
| Detectability | High |
|---|---|
| Data sources (ATT&CK data components) | Network Connection CreationNetwork Traffic FlowProcess Creation |
Detection & response
Mitigated by 12
- M1037 attack-mitigation
D3-APCAd3fendD3-CSPPd3fendD3-ISVAd3fendD3-ITFd3fendD3-NTCDd3fendD3-NTFd3fendD3-NTSAd3fendD3-PHDURAd3fendD3-PMADd3fendD3-RTSDd3fendD3-UGLPAd3fend
Detected by 4
- DET0518 attack-detection-strategy
40967487-139b-4811-81d9-c9767a92aa5asigma7cded4b3-f09e-405a-b96f-24248433ba44sigma999e8307-a775-4d5f-addc-4855632335besigma
Attack relationships
- Child: ACK flood
- Child: BlackNurse
- Child: CLDAP reflection
- Child: DNS amplification
- Child: DNS flood
- Child: Fraggle
- Child: ICMP / ping flood
- Child: Memcached amplification
- Child: NTP amplification
- Child: Reflection / amplification DDoS
- Child: Smurf
- Child: SSDP / UPnP reflection
- Child: UDP flood
- Child: Volumetric DDoS
Framework references
- Primary source: https://en.wikipedia.org/wiki/Denial-of-service_attack
- attack: T1498 (primary)
Evidence & sources
- ev-0001 (Cyber Attack Taxonomy) — Name, definition and Example/ID taken verbatim from the 'Network and infrastructure attacks' table, line 158 of Cyber-Attack-Taxonomy.md
- ev-0002 (Seeded-record enrichment run 2026-09-30 (crosswalk + facet classification)) — Crosswalk to attack:T1498 as the nearest framework entries; ids verified to exist in the cached catalogues.
- ev-0003 (MITRE Enterprise ATT&CK v19.2 (STIX 2.1)) — ATT&CK usage prevalence: 3 groups/software/campaigns reference this technique (ATT&CK enterprise v19.2)