Remote Server Service Abuse for Lateral Movement
Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR
Sigma rule (View on GitHub)
1title: Remote Server Service Abuse for Lateral Movement
2id: 10018e73-06ec-46ec-8107-9172f1e04ff2
3status: test
4description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR
5references:
6 - https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-srvs/accf23b0-0f57-441c-9185-43041f1b0ee9
7 - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/ddd4608fe8684fcf2fcf9b48c5f0b3c28097f8a3/documents/MS-SCMR.md
8 - https://github.com/zeronetworks/rpcfirewall
9 - https://zeronetworks.com/blog/stopping-lateral-movement-via-the-rpc-firewall/
10author: Sagie Dulce, Dekel Paz
11date: 2022-01-01
12modified: 2022-01-01
13tags:
14 - attack.lateral-movement
15 - attack.t1569.002
16logsource:
17 product: rpc_firewall
18 category: application
19 definition: 'Requirements: install and apply the RPC Firewall to all processes with "audit:true action:block uuid:367abb81-9844-35f1-ad32-98f038001003'
20detection:
21 selection:
22 EventLog: RPCFW
23 EventID: 3
24 InterfaceUuid: 367abb81-9844-35f1-ad32-98f038001003
25 condition: selection
26falsepositives:
27 - Administrative tasks on remote services
28level: high
References
-
Specifies the Server Service Remote Protocol, which remotely enables file and printer sharing and named pipe access to the
Read More -
A repository that maps commonly used attacks using MSRPC protocols to ATT&CK - jsecurity101/MSRPC-to-ATTACK
Read More -
-
RPC Firewall is a free & open source tool, which detects and protects against RPC based attacks used by ransomware for lateral movement and other attacks
Read More
Related rules
- CobaltStrike Service Installations - Security
- CobaltStrike Service Installations - System
- Metasploit Or Impacket Service Installation Via SMB PsExec
- PSExec and WMI Process Creations Block
- PUA - CSExec Default Named Pipe