Suspicious Cloud Atlas Run Key Persistence via YandexBrowser Masquerade (via registry_set)

ATT&CK techniques

Persistence → Priv Esc

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1547.001Registry Run Keys / Startup Folder
Priv Esc
- T1547.001Registry Run Keys / Startup Folder
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects creation of a Run key value named YandexBrowser_setup, an autostart name Cloud Atlas uses to disguise persistence as a legitimate browser installer. The value relaunches attacker tooling at logon while masquerading as benign software. Detecting this value name surfaces registry persistence tied to the campaign.

Reporting behind it

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Suspicious Cloud Atlas Run Key Persistence via YandexBrowser Masquerade (via registry_set)

Pivot detection · T1547.001 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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