Dismember | Scan Memory For Secrets And More

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Ruchika oberoi

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Mar 27, 2022
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Dismember is a command-line toolkit for Linux that can be used to scan the memory of all processes (or particular ones) for common secrets and custom regular expressions, among other things.

It will eventually become a full /proc toolkit.

Demo 5

Using the grep command, it can match a regular expression across all memory for all (accessible) processes. This could be used to find sensitive data in memory, identify a process by something included in its memory, or to interrogate a processes’ memory for interesting information.

There are many built-in patterns included via the scan command, which effectively works as a secret scanner against the memory on your machine.

Dismember can be used to search memory of all processes it has access to, so running it as root is the most effective method.

Commands are also included to list processes, explore process status and related information, draw process trees, and more…

Main Commands​

CommandDescription
grepSearch process memory for a given string or regex
scanSearch process memory for a set of predefined secret patterns

Utility Commands​

CommandDescription
filesShow a list of files being accessed by a process
findFind a PID given a process name. If multiple processes match, the first one is returned.
infoShow information about a process
kernelShow information about the kernel
killKill a process (or processes) using SIGKILL
listList all processes currently available on the system
resumeResume a suspended process using SIGCONT
suspendSuspend a process using SIGSTOP (use ‘dismember resume’ to leave suspension)
treeShow a tree diagram of a process and all children (defaults to PID 1).

Installation​

Grab a binary from the and add it to your path.

Usage Examples​

Search for a pattern in a process by PID​

search memory owned by process 1234 dismember grep -p 1234 ‘the password is .*’​

Search for a pattern in a process by name​

search memory owned by processes named “nginx” for a login form submission dismember grep -n nginx ‘username=liamg&password=.*’​

Search for a pattern across all processes​

find a github api token across all processes dismember grep ‘gh[pousr]_[0-9a-zA-Z]{36}’​

Search for secrets in memory across all processes​

search all accessible memory for common secrets dismember scan​

FAQ​

Isn’t this information all just sitting in /proc?
Pretty much. Dismember just reads and presents it for the most part. If you can get away with grep whatever /proc/[pid]/blah then go for it! I built this as an educational experience because I couldn’t sleep one night and stayed up late reading the proc man-pages (I live an extremely rock ‘n’ roll lifestyle). It’s not a replacement for existing tools, but perhaps it can complement them.

Do you know how horrific some of these commands seem when read out of context?
.

GitHub:​

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🔪 Scan memory for secrets and more. Maybe eventually a full /proc toolkit. - GitHub - liamg/dismember: Scan memory for secrets and more. Maybe eventually a full /proc toolkit.