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The trap command allows programs and shells to specify commands that will be executed upon receiving interrupt signals. Adversaries can use this to register code to be executed when the shell encounters specific interrupts.
Adding it as PBA:
- LINUX: use trap for SIGINT (ctrl+c), send signal, "untrap" the signal
- WINDOWS: not applicable
T1154
The
trap
command allows programs and shells to specify commands that will be executed upon receiving interrupt signals. Adversaries can use this to register code to be executed when the shell encounters specific interrupts.Adding it as PBA:
- LINUX: use
trap
for SIGINT (ctrl+c), send signal, "untrap" the signal- WINDOWS: not applicable
Mapping the technique to the ATT&CK matrix
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