Top 5 C Shellcode Projects

shad0w

2 1,981 0.0 C

A post exploitation framework designed to operate covertly on heavily monitored environments
bddisasm

3 838 7.3 C

bddisasm is a fast, lightweight, x86/x64 instruction decoder. The project also features a fast, basic, x86/x64 instruction emulator, designed specifically to detect shellcode-like behavior.
WorkOS

workos.com sponsored

The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
monomorph

7 774 10.0 C

MD5-Monomorphic Shellcode Packer - all payloads have the same MD5 hash
ntqueueapcthreadex-ntdll-gadget-injection

1 222 1.5 C

This novel way of using NtQueueApcThreadEx by abusing the ApcRoutine and SystemArgument[0-3] parameters by passing a random pop r32; ret gadget can be used for stealthy code injection.
ADMMutate

1 79 4.1 C

Classic code from 1999+ I am fairly sure this is the first public polymorphic shellcode ever (best IMHO and others http://ids.cs.columbia.edu/sites/default/files/ccs07poly.pdf :) If I ever port this to 64 or implement a few other suggestions (sorry I lost ppc code version contributed) it will be orders of magnitude more difficult to spot, so I hope nobody uses signatures for anything (virus / malware scanners included).
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).