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ATT&CK techniqueExfiltration

T1537 Transfer Data to Cloud Account

ExfiltrationEnterprise

As of 2026-10-05, T1537 (Transfer Data to Cloud Account) appears in 69 tracked threats, first reported 2026-02-02 and most recently 2026-09-27, with linked actors including ShinyHunters, UNC6240, Scattered LAPSUS$ Hunters; it most often appears alongside T1078 (Valid Accounts).

Tracked threats
6922 critical, 37 high, 9 medium
First seen
2026-02-02
Last seen
2026-09-27
Threat actors
40In the threats using it
Detection rules
85Blue tier and above

Data as of:

Activity timeline

T1537 first appeared in tracked threats on and was most recently reported on . The busiest month was 2026-07 with 20 reports, and 69 of the 69 threats were reported in the twelve months to 2026-09.

How adversaries use it

T1537 Transfer Data to Cloud Account is catalogued by MITRE ATT&CK under the Exfiltration tactic in the Enterprise matrix. Threadlinqs maps 69 of 2623 tracked threats (2.6%) to it; by severity that is 22 critical, 37 high, 9 medium.

Threats that use T1537 most often also use T1078 Valid Accounts (48 threats), T1657 Financial Theft (36 threats), T1526 Cloud Service Discovery (35 threats), T1583 Acquire Infrastructure (35 threats), T1567 Exfiltration Over Web Service (34 threats). These are the techniques an intrusion set tends to chain with it, so they are the natural next places to look when it is observed.

40 tracked threat actors appear in the threats that use T1537; the most frequent are ShinyHunters (11), UNC6240 (7), Scattered LAPSUS$ Hunters (6), Scattered Spider (6), The Com (5).

Mitigations

MITRE ATT&CK lists 4 mitigations for T1537.

Data sources

Telemetry that can reveal T1537, per MITRE ATT&CK.

  • Application Log — Application Log Content
  • Cloud Storage — Cloud Storage Creation, Cloud Storage Metadata, Cloud Storage Modification
  • Network Traffic — Network Traffic Content
  • Snapshot — Snapshot Creation, Snapshot Metadata, Snapshot Modification

Threat actors using it

Tracked threats

The 30 most recent of 69 tracked threats that use T1537.

Detection coverage

Threadlinqs maintains 85 detection rules mapped to T1537 (SPL 31, KQL 29, Sigma 25). Rule content is available to Blue tier accounts and above; this page shows counts only.

85 detection rules (SPL/KQL/Sigma) · Blue and above. Compare plans