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mythril
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Bernhard Mueller 7 years ago
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README.md
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@ -4,11 +4,18 @@ Mythril is an assembler and disassembler for Ethereum VM bytecode. It was create
## Installation ## Installation
Clone the git repo: Install from Pypi:
```bash
$ pip install mythril
```
Or, clone the GitHub repo to install the newest master branch:
```bash ```bash
$ git clone https://github.com/b-mueller/mythril/ $ git clone https://github.com/b-mueller/mythril/
$ pip install -r requirements.txt $ cd mythril
$ python setup.py install
``` ```
## Usage ## Usage
@ -16,7 +23,7 @@ $ pip install -r requirements.txt
To disassemble a piece of bytecode, pass it on the command line: To disassemble a piece of bytecode, pass it on the command line:
```bash ```bash
$ ./mythril.py -d -c "0x606060405050" $ mythril -d -c "0x606060405050"
PUSH1 0x60 PUSH1 0x60
PUSH1 0x40 PUSH1 0x40
POP POP
@ -28,7 +35,7 @@ POP
Mythril can assemble code from input files that contain one instruction per line. To start from an existing contract, save the disassembly to a text file: Mythril can assemble code from input files that contain one instruction per line. To start from an existing contract, save the disassembly to a text file:
```bash ```bash
$ ./mythril.py -d -c "0x606060405050" -o code.easm $ mythril -d -c "0x606060405050" -o code.easm
``` ```
Edit the instructions in a text editor. For example, we can modify the `PUSH` instructions from the original example: Edit the instructions in a text editor. For example, we can modify the `PUSH` instructions from the original example:
@ -43,7 +50,7 @@ POP
Save the file and run Mythril with the `-a` flag to re-assemble: Save the file and run Mythril with the `-a` flag to re-assemble:
``` ```
$ ./mythril.py -a code.easm $ mythril -a code.easm
0x61405063607080905050 0x61405063607080905050
``` ```
@ -64,8 +71,8 @@ vm stack=[b'96'] op=POP steps=3 depth=0 gas=b'999992' pc=b'5' inst=80
For larger contracts, you might prefer to compile them to a binary file instead: For larger contracts, you might prefer to compile them to a binary file instead:
``` ```
$ ./mythril.py -a contract.easm -o contract.bin $ mythril -a contract.easm -o contract.bin
$ ./mythril.py --trace -f contract.bin $ mythril --trace -f contract.bin
``` ```
### Disassembling a contract from the Ethereum blockchain ### Disassembling a contract from the Ethereum blockchain
@ -79,7 +86,7 @@ $ geth --syncmode full --rpc --rpcapi eth,debug
To load contract code from your node, pass the TxID of the transaction that created the contract: To load contract code from your node, pass the TxID of the transaction that created the contract:
```bash ```bash
$ ./mythril.py -d --txid 0x23112645da9ae684270de843faaeb44918c79a09e019d3a6cf8b87041020340e -o some_contract.easm $ mythril -d --txid 0x23112645da9ae684270de843faaeb44918c79a09e019d3a6cf8b87041020340e -o some_contract.easm
``` ```
Note: If you want to get code from the Ethereum mainnet, it is easier to download it from [Etherscan](https://etherscan.io). Note: If you want to get code from the Ethereum mainnet, it is easier to download it from [Etherscan](https://etherscan.io).

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