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special-handlers_windows.go
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special-handlers_windows.go
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//go:build windows
package handlers
/*
Sliver Implant Framework
Copyright (C) 2019 Bishop Fox
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import (
"os"
"github.com/bishopfox/sliver/implant/sliver/transports"
"github.com/bishopfox/sliver/protobuf/sliverpb"
// {{if or .Config.IsSharedLib .Config.IsShellcode}}
"syscall"
// {{end}}
// {{if .Config.Debug}}
"log"
// {{end}}
"google.golang.org/protobuf/proto"
)
var specialHandlers = map[uint32]SpecialHandler{
sliverpb.MsgKillSessionReq: killHandler,
}
// GetSpecialHandlers returns the specialHandlers map
func GetSpecialHandlers() map[uint32]SpecialHandler {
return specialHandlers
}
func killHandler(data []byte, _ *transports.Connection) error {
killReq := &sliverpb.KillReq{}
err := proto.Unmarshal(data, killReq)
// {{if .Config.Debug}}
log.Println("KILL called")
// {{end}}
if err != nil {
return err
}
// {{if or .Config.IsSharedLib .Config.IsShellcode}}
// Windows only: ExitThread() instead of os.Exit() for DLL/shellcode slivers
// so that the parent process is not killed
var exitFunc *syscall.Proc
if killReq.Force {
exitFunc = syscall.MustLoadDLL("kernel32.dll").MustFindProc("ExitProcess")
} else {
exitFunc = syscall.MustLoadDLL("kernel32.dll").MustFindProc("ExitThread")
}
exitFunc.Call(uintptr(0))
// {{end}}
// {{if .Config.Debug}}
log.Println("Let's exit!")
// {{end}}
os.Exit(0)
return nil
}