Find sigma rule
Attack: Indicator Removal on Host: File Deletion
Adversaries may delete files left behind by the actions of their intrusion activity. Malware, tools, or other non-native files dropped or created on a system by an adversary (ex: Ingress Tool Transfer) may leave traces to indicate to what was done within a network and how. Removal of these files can occur during an intrusion, or as part of a post-intrusion process to minimize the adversary’s footprint.
There are tools available from the host operating system to perform cleanup, but adversaries may use other tools as well.(Citation: Microsoft SDelete July 2016) Examples of built-in Command and Scripting Interpreter functions include del
on Windows and rm
or unlink
on Linux and macOS.
MITRE
Tactic
- defense-evasion
technique
- T1070.004
Test : Delete Filesystem - Linux
OS
- linux
Description:
This test deletes the entire root filesystem of a Linux system. This technique was used by Amnesia IoT malware to avoid analysis. This test is dangerous and destructive, do NOT use on production equipment.
Executor
sh