Best InvalidSign Alternatives & Competitors in 2026
Top picks: WebDAV Covert Channel, Core Security Outflank Security Tooling, EvilClippy — plus 45 more compared.
Security OperationsTop picks: WebDAV Covert Channel, Core Security Outflank Security Tooling, EvilClippy — plus 45 more compared.
Security OperationsInvalidSign is a free Offensive Security tool. Security professionals most commonly compare it with WebDAV Covert Channel, Core Security Outflank Security Tooling, EvilClippy, Macro_Pack, and MSBuildAPICaller. All 48 alternatives are matched by shared capabilities, tags, and NIST CSF 2.0 coverage.
A closer look at the 8 most relevant alternatives and competitors to InvalidSign, including their key features and shared capabilities.
A covert channel technique that uses WebDAV protocol features to deliver malicious payloads and establish C2 communication while bypassing security controls.
Shares 4 capabilities with InvalidSign: Red Team, Evasion, Payload Generation, Bypass
Red team toolkit for EDR evasion, initial access, and post-exploitation.
Shares 3 capabilities with InvalidSign: Red Team, Evasion, Payload Generation
EvilClippy is a cross-platform tool that creates malicious MS Office documents with hidden VBA macros and evasion techniques for penetration testing and red team operations.
Shares 3 capabilities with InvalidSign: Red Team, Evasion, Payload Generation
Macro_Pack automates the generation and obfuscation of Office documents and scripts for penetration testing and security assessments.
Shares 3 capabilities with InvalidSign: Red Team, Evasion, Payload Generation
MSBuildAPICaller is an offensive security tool that enables interaction with the MSBuild API to execute arbitrary scripts for red teaming and penetration testing purposes.
Shares 3 capabilities with InvalidSign: Red Team, Evasion, Bypass
SourcePoint generates customizable C2 profiles for Cobalt Strike servers to enhance evasion capabilities against security defenses.
Shares 3 capabilities with InvalidSign: Red Team, Evasion, Payload Generation
TikiTorch is a process injection tool that executes code within the address space of other processes using various injection techniques.
Shares 3 capabilities with InvalidSign: Red Team, Evasion, Payload Generation
A repository documenting AppLocker bypass techniques with verified methods, legacy DLL execution approaches, and a PowerShell module for identifying AppLocker weaknesses.
Shares 3 capabilities with InvalidSign: Red Team, Evasion, Bypass
A covert channel technique that uses WebDAV protocol features to deliver malicious payloads and establish C2 communication while bypassing security controls.
Red team toolkit for EDR evasion, initial access, and post-exploitation.
EvilClippy is a cross-platform tool that creates malicious MS Office documents with hidden VBA macros and evasion techniques for penetration testing and red team operations.
Macro_Pack automates the generation and obfuscation of Office documents and scripts for penetration testing and security assessments.
MSBuildAPICaller is an offensive security tool that enables interaction with the MSBuild API to execute arbitrary scripts for red teaming and penetration testing purposes.
SourcePoint generates customizable C2 profiles for Cobalt Strike servers to enhance evasion capabilities against security defenses.
TikiTorch is a process injection tool that executes code within the address space of other processes using various injection techniques.
A repository documenting AppLocker bypass techniques with verified methods, legacy DLL execution approaches, and a PowerShell module for identifying AppLocker weaknesses.
Post-exploitation threat emulation platform for red team operations.
Bundled offensive security suites combining pen testing, red teaming, and VM.
PyBOF is a Python library that enables in-memory loading and execution of Beacon Object Files (BOFs) with support for argument passing and function targeting.
A command line tool that generates randomized malleable C2 profiles for Cobalt Strike to vary command and control communication patterns.
CobaltBus integrates Cobalt Strike with Azure Service Bus to create covert C2 communication channels for red team operations.
Covenant is a collaborative .NET command and control framework designed for red team operations and offensive security engagements.
CrossC2 is a cross-platform payload generator that extends CobaltStrike's capabilities to Linux and macOS environments for red team operations.
Darkarmour is an open-source Windows antivirus evasion framework that enables security professionals to bypass antivirus detection through customizable obfuscation and anti-analysis techniques.
Havoc is a malleable post-exploitation command and control framework that provides a client-server architecture with payload generation, customizable C2 profiles, and team collaboration capabilities for red team operations.
A template-driven framework for creating custom evasion techniques to test Anti-Virus and EDR detection capabilities.
InvisibilityCloak is a proof-of-concept C# code obfuscation toolkit designed for red teaming and penetration testing to conceal post-exploitation tools from detection.
Ivy is a payload creation framework for executing arbitrary VBA source code directly in memory, utilizing programmatical access to load, decrypt, and execute shellcode.
A macOS Initial Access Payload Generator for penetration testing and red teaming exercises.
A proxy aware C2 framework for penetration testing, red teaming, post-exploitation, and lateral movement with modular format and highly configurable payloads.
RedGuard is a C2 front flow control tool that helps evade detection by security systems through traffic filtering and redirection capabilities.
RedWarden is a Cobalt Strike C2 reverse proxy that uses packet inspection and malleable profile correlation to evade detection by security controls during red team operations.
A payload creation framework designed to bypass Endpoint Detection and Response (EDR) systems.
Skyhook is an HTTP-based file transfer tool that uses obfuscation techniques to evade detection by Intrusion Detection Systems.
A proof-of-concept tool that generates Excel BIFF8 files with embedded 4.0 macros programmatically without requiring Microsoft Excel installation.
A collection of tools that execute programs directly in memory using various delivery methods including URL downloads and netcat connections.
A proof-of-concept executable injection tool that compiles and launches parasitic executables within target processes using standard or stealth injection techniques.
A payload creation framework for generating and executing C# code payloads with anti-evasion capabilities for offensive security operations.
A powerful tool for hiding the true location of your Teamserver, evading detection from Incident Response, redirecting users, blocking specific IP addresses, and managing Malleable C2 traffic in Red Team engagements.
SigThief extracts digital signatures from signed PE files and appends them to other files to create invalid signatures for testing Anti-Virus detection mechanisms.
A C++ staged shellcode loader with evasion capabilities, compatible with Sliver and other shellcode sources, designed for offensive security testing.
Threat emulation tool for adversary simulations and red team operations
Whole-system emulation environment for software dev, debugging, testing & security
FourCore ATTACK is an adversary emulation platform to manage cyber risk with evidence
AI agent platform for automating offensive security operations and evals.
AI-assisted vulnerability research and advanced offensive cyber tooling firm.
R&D firm providing cyber defense & operational tech for DoD and DHS.
AI agent for in-depth binary analysis and reverse engineering assistance.
CLI cheatsheet for Red Specter's 30-tool offensive security platform.
MCP server enabling AI agents to autonomously run 150+ security tools
LeakIX is a red-team search engine that indexes mis-configurations and vulnerabilities online.
Parrot Security OS is a comprehensive, secure, and customizable operating system for cybersecurity professionals, offering over 600+ tools and utilities for red and blue team operations.
A command that builds and executes command lines from standard input, allowing for the execution of commands with multiple arguments.
Tool for enumerating proxy configurations and generating CobaltStrike-compatible shellcode.
RedELK is a SIEM tool designed for red teams to monitor and receive alerts about blue team detection activities during penetration testing engagements.
An Azure Function that validates and relays Cobalt Strike beacon traffic based on Malleable C2 profile authentication.
Common questions security professionals ask when evaluating alternatives and competitors to InvalidSign.
The most popular alternatives to InvalidSign include WebDAV Covert Channel, Core Security Outflank Security Tooling, EvilClippy, Macro_Pack, and MSBuildAPICaller. These Offensive Security tools offer similar capabilities and are frequently compared by security professionals evaluating their options.
