A comprehensive memory scanning library

Related tags

Memory management scanflow
Overview

scanflow

Crates.io Crates.io API Docs Build and test MIT licensed

A comprehensive memory scanning library

scanflow boasts a feature set similar to the likes of CheatEngine, with a simple command line interface. Utilizing memflow, scanflow works in a wide range of situations - from virtual machines, to dedicated DMA hardware. While it's focused around the CLI, it can also be used as a standalone library, easy to integrate to other memflow projects. With performance being at its forefront, scanflow should be able to achieve revolutionary memory scan speeds.

Setting up

  1. Install the CLI:
cargo install scanflow-cli
  1. Optionally enable ptrace for the binary (for use with qemu):
sudo setcap 'CAP_SYS_PTRACE=ep' ~/.cargo/bin/scanflow-cli

  1. Set up connectors using memflowup

  2. Enjoy:

scanflow-cli -c qemu_procfs -p svchost.exe

Background

This tool came to be as a result of my YouTube series detailing memflow and various memory scanning techniques. If you wish to learn more, check out the memflow-applied playlist.

memflow-applied repo is also available with snapshots of different stages of development.

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Comments
  • scanflow-cli | oslayer: configuration error | qemu

    scanflow-cli | oslayer: configuration error | qemu

    Followed README.md instructions. Ran: scanflow-cli --os win32 svchost.exe

    07:47:05 [ERROR] oslayer: configuration error (Must provide memory!)
07:47:05 [ERROR] oslayer: configuration error
Error: Error(OsLayer, Configuration)

    > memflowup list
Available packages:
0. memflow-ffi - Library ()
1. memflow-win32 - CorePlugin (dev/git)
2. memflow-native - CorePlugin (dev/git)
3. memflow-qemu - CorePlugin (dev/git)
4. memflow-coredump - CorePlugin (stable/git, dev/git)
5. memflow-kcore - CorePlugin (dev/git)
6. memflow-pcileech - CorePlugin (dev/git)
7. memflow-kvm - CorePlugin (dev/git)
    invalid 
    opened by codecnotsupported 2
  • Commands need additional explaination.

    Commands need additional explaination.

    I haven't read scanflow's code, but I'm confused how to use certain commands. Is it all explained in the memflow applied playlist?

    What I could gather.

    Self explanatory:

    quit q: quit the CLI help h: show this help reset r: reset all context state

    add a: manually add an address to matches remove rm: remove match by index print p: print found matches after initial scan

    Needs additional info

    write wr: write values to select matches. Arguments: {idx/*} {o/c} {value}

    • {idx/*}
      • idx: Write to the search match idx.
      • *: Write to the all search matches. (I'd prefer all as oppose to *)
    • {o/c}
      • o: No clue
      • c: No clue
    • value: Self explainitory

    reinterpret ri: reinterpret matches as another type. Usage: {{type}} ({{unsized len}})

    • {{type}}
      • Target recast type: str, str_utf16, i8, u8, i16, u16, i32, u32, i64, u64, i128, u128, f32, f64
    • ({{unsized len}})
      • Optional: Size of the type, Applicable to str and str_utf16
    • NOTE: Why the double {{}} brackets?

    globals g: find all global variables referenced by code

    • No idea how to use.
    • What the use of it is.

    sigmaker s: build a pointer map. args: {addr}

    • No idea how to use.

    offset_scan os: scan for offsets to matches. Arguments: {y/[n]} {lower range} {upper range} {max depth} ({filter})

    • {y/[n]}
      • y/n??
      • Default = n
    • {lower range}
      • scan result ptr - lower range = lower range
    • {upper range}
      • scan result ptr - upper range = upper range
    • {max depth}
      • Derefence pointers? And scan those?
    • ({filter})
      • Optional: A Filter??

    pointer_map pm: build a pointer map

    • No idea how to use. ( I know what a pointer map is )
    • Note: This caused a BSOD: watchdog timeout in the VM, further causing a unresponsive host system, sysrq-reboot still worked, this will probably work with other (not qemu) connectors.
      • Might be caused due to improper usage.
    opened by codecnotsupported 1
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memflow
memflow
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