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Detectionmediumtest

Old TLS1.0/TLS1.1 Protocol Version Enabled

Detects applications or users re-enabling old TLS versions by setting the "Enabled" value to "1" for the "Protocols" registry key.

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Launch
Nasreddine Bencherchali (Nextron Systems)Created Tue Sep 05439957a7-ad86-4a8f-9705-a28131c6821bwindows
Log Source
WindowsRegistry Set
ProductWindows← raw: windows
CategoryRegistry Set← raw: registry_set
Detection Logic
Detection Logic1 selector
detection:
    selection:
        TargetObject|contains:
            - '\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\'
            - '\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\'
        TargetObject|endswith: '\Enabled'
        Details: 'DWORD (0x00000001)'
    condition: selection
False Positives

Legitimate enabling of the old tls versions due to incompatibility

References
1
Resolving title…
techcommunity.microsoft.com
MITRE ATT&CK
Rule Metadata
Rule ID
439957a7-ad86-4a8f-9705-a28131c6821b
Status
test
Level
medium
Type
Detection
Created
Tue Sep 05
Author
Nasreddine Bencherchali (Nextron Systems)
Path
rules/windows/registry/registry_set/registry_set_tls_protocol_old_version_enabled.yml
Raw Tags
attack.defense-evasion
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