Suspicious PROCEXP152.sys File Created In TMP

 1title: Suspicious PROCEXP152.sys File Created In TMP
 2id: 3da70954-0f2c-4103-adff-b7440368f50e
 3status: test
 4description: |
 5  Detects the creation of the PROCEXP152.sys file in the application-data local temporary folder.
 6  This driver is used by Sysinternals Process Explorer but also by KDU (https://github.com/hfiref0x/KDU) or Ghost-In-The-Logs (https://github.com/bats3c/Ghost-In-The-Logs), which uses KDU.  
 7references:
 8    - https://blog.dylan.codes/evading-sysmon-and-windows-event-logging/
 9author: xknow (@xknow_infosec), xorxes (@xor_xes)
10date: 2019/04/08
11modified: 2022/11/22
12tags:
13    - attack.t1562.001
14    - attack.defense_evasion
15logsource:
16    product: windows
17    category: file_event
18detection:
19    selection:
20        TargetFilename|contains: '\AppData\Local\Temp\'
21        TargetFilename|endswith: 'PROCEXP152.sys'
22    filter:
23        Image|contains:
24            - '\procexp64.exe'
25            - '\procexp.exe'
26            - '\procmon64.exe'
27            - '\procmon.exe'
28    condition: selection and not filter
29falsepositives:
30    - Other legimate tools using this driver and filename (like Sysinternals). Note - Clever attackers may easily bypass this detection by just renaming the driver filename. Therefore just Medium-level and don't rely on it.
31level: medium