attack.t1070.005

MaxMpxCt Registry Value Changed

Feb 3, 2025 · attack.defense-evasion attack.t1070.005 ·

Detects changes to the "MaxMpxCt" registry value. MaxMpxCt specifies the maximum outstanding network requests for the server per client, which is used when negotiating a Server Message Block (SMB) connection with a client. Note if the value is set beyond 125 older Windows 9x clients will fail to negotiate. Ransomware threat actors and operators (specifically BlackCat) were seen increasing this value in order to handle a higher volume of traffic.

Disable Administrative Share Creation at Startup

Aug 12, 2024 · attack.defense-evasion attack.t1070.005 ·

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Administrative shares are hidden network shares created by Microsoft Windows NT operating systems that grant system administrators remote access to every disk volume on a network-connected system

PowerShell Deleted Mounted Share

Aug 12, 2024 · attack.defense-evasion attack.t1070.005 ·

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Detects when when a mounted share is removed. Adversaries may remove share connections that are no longer useful in order to clean up traces of their operation

Unmount Share Via Net.EXE

Aug 12, 2024 · attack.defense-evasion attack.t1070.005 ·

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Detects when when a mounted share is removed. Adversaries may remove share connections that are no longer useful in order to clean up traces of their operation