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- Major loader update! - Added TLS callback support - Added forwarded imports support - Removed GetProcAddress and LoadLibrary WinAPI usage - Switched to NTDLL WinApi functions - Wiper code improved - Added lite loader option for appending PE files on the fly! - Added experimental raw syscall loader - Added static build flags in makefile - File name bug fixed - Dockerfile updated - Github workflows added - README updated
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
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| name: build | ||
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| on: | ||
| push: | ||
| branches: [ "master" ] | ||
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| jobs: | ||
| linux-build: | ||
| runs-on: ubuntu-latest | ||
| steps: | ||
| - uses: actions/checkout@v3 | ||
| - name: Set up Go | ||
| uses: actions/setup-go@v3 | ||
| with: | ||
| go-version: 1.19 | ||
| - name: Install Keystone | ||
| run: ./install-keystone.sh | ||
| - name: Build for Linux | ||
| run: make | ||
| - name: 'Upload Artifact' | ||
| uses: actions/upload-artifact@v3 | ||
| with: | ||
| name: amber_linux | ||
| path: amber | ||
| retention-days: 5 | ||
| macos-run: | ||
| runs-on: macos-latest | ||
| steps: | ||
| - uses: actions/checkout@v3 | ||
| - name: Set up Go | ||
| uses: actions/setup-go@v3 | ||
| with: | ||
| go-version: 1.19 | ||
| - name: Install Keystone | ||
| run: ./install-keystone.sh | ||
| - name: Build for MacOS | ||
| run: make | ||
| - name: 'Upload Artifact' | ||
| uses: actions/upload-artifact@v3 | ||
| with: | ||
| name: amber_darwin | ||
| path: amber | ||
| retention-days: 5 | ||
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||
| windows-build: | ||
| runs-on: windows-latest | ||
| steps: | ||
| - uses: actions/checkout@v3 | ||
| - name: Set up Go | ||
| uses: actions/setup-go@v3 | ||
| with: | ||
| go-version: 1.19 | ||
| - name: Build for Windows | ||
| run: make | ||
| - name: 'Upload Artifact' | ||
| uses: actions/upload-artifact@v3 | ||
| with: | ||
| name: amber.exe | ||
| path: amber.exe | ||
| retention-days: 5 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,14 +1,5 @@ | ||
| normal: | ||
| go build -ldflags="-s -w" -trimpath -o amber | ||
| 386: | ||
| CGO_ENABLED=1 GOARCH=386 go build -ldflags="-s -w" -trimpath -o amber | ||
| linux_amd64: | ||
| GOOS=linux CGO_ENABLED=1 GOARCH=amd64 go build -ldflags="-s -w" -trimpath -o amber | ||
| linux_386: | ||
| GOOS=linux CGO_ENABLED=1 GOARCH=386 go build -ldflags="-s -w" -trimpath -o amber | ||
| windows_amd64: | ||
| GOOS=windows GOARCH=amd64 CGO_ENABLED=1 CGO_LDFLAGS="-lkeystone -L`pwd`/build/lib/" CXX=x86_64-w64-mingw32-g++ CC=x86_64-w64-mingw32-gcc go build -ldflags="-s -w" -trimpath -o amber.exe | ||
| windows_386: | ||
| GOOS=windows GOARCH=386 CGO_ENABLED=1 CGO_LDFLAGS="-lkeystone -L`pwd`/build/lib32/" CXX=i686-w64-mingw32-g++ CC=i686-w64-mingw32-gcc go build -ldflags="-s -w" -trimpath -o amber32.exe | ||
| darwin: | ||
| GOOS=darwin CGO_ENABLED=1 CGO_LDFLAGS="-lkeystone -L`pwd`/build/lib/" go build -ldflags="-s -w" -trimpath -o amber | ||
| BUILD=go build | ||
| BUILD_FLAGS=-trimpath -buildvcs=false -ldflags="-extldflags=-static -s -w -X github.com/egebalci/amber/config.Version=$$(git log --pretty=format:'v1.0.%at-%h' -n 1)" | ||
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| default: | ||
| ${BUILD} ${BUILD_FLAGS} -o amber |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,79 +1,83 @@ | ||
| package config | ||
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| import ( | ||
| "errors" | ||
| "flag" | ||
| "fmt" | ||
| "os" | ||
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| amber "github.com/EgeBalci/amber/pkg" | ||
| sgn "github.com/EgeBalci/sgn/pkg" | ||
| "github.com/fatih/color" | ||
| "github.com/EgeBalci/amber/utils" | ||
| "github.com/alecthomas/kong" | ||
| ) | ||
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| var usageStr = ` | ||
| Usage: amber [options] | ||
| Options: | ||
| -f, --file <file> Input PE file | ||
| -s, --stub <file> Use custom stub file (experimental) | ||
| -m, --max <int> Maximum number of bytes for obfuscation | ||
| -e, <int> Number of times to encode the generated reflective payload | ||
| -b, --build Build EXE stub that executes the generated reflective payload | ||
| --iat, Use IAT API resolver block instead of CRC API resolver block | ||
| --ignore-checks, Ignore integrity check errors. | ||
| -h, Show this message | ||
| ` | ||
| const Version = "3.2.0" | ||
|
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| // PrintUsageErrorAndDie ... | ||
| func PrintUsageErrorAndDie(err error) { | ||
| color.Red(err.Error()) | ||
| fmt.Println(usageStr) | ||
| os.Exit(1) | ||
| func HelpPrompt(options kong.HelpOptions, ctx *kong.Context) error { | ||
| err := kong.DefaultHelpPrinter(options, ctx) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
|
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| // PrintHelpAndDie ... | ||
| func PrintHelpAndDie() { | ||
| fmt.Println(usageStr) | ||
| os.Exit(0) | ||
| // Main config struct for parsing the TOML file | ||
| type Config struct { | ||
| FileName string `help:"Input PE file name." name:"file" short:"f"` | ||
| OutputFile string `help:"Output binary payload file name." name:"out" short:"o"` | ||
| EncodeCount int `help:"Number of times to encode the generated reflective payload." name:"encode" short:"e" default:"1"` | ||
| ObfuscationLimit int `help:"Maximum number of bytes for encoder obfuscation." name:"obfuscate-limit" short:"l" default:"5"` | ||
| UseIAT bool `help:"Use IAT API resolver block instead of CRC API resolver block." name:"iat"` | ||
| UseSyscalls bool `help:"Perform raw syscalls. (only x64)" name:"sys"` | ||
| ScrapePeHeaders bool `help:"Scrape magic byte and DOS stub from PE." name:"scrape"` | ||
| // IgnoreIntegrity bool `help:"Ignore PE file integrity check errors." name:"ignore"` | ||
| Verbose bool `help:"Verbose mode." name:"verbose" short:"v"` | ||
| Version kong.VersionFlag | ||
| } | ||
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| // ConfigureOptions accepts a flag set and augments it with agentgo-server | ||
| // specific flags. On success, an options structure is returned configured | ||
| // based on the selected flags. | ||
| func ConfigureOptions(fs *flag.FlagSet, args []string) (*amber.Blueprint, *sgn.Encoder, error) { | ||
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| // Create empty options | ||
| bp := &amber.Blueprint{} | ||
| encoder := sgn.NewEncoder() | ||
| func Parse() (*Config, error) { | ||
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| // Define flags | ||
| help := fs.Bool("h", false, "Show help message") | ||
| fs.StringVar(&bp.FileName, "f", "", "Input PE file") | ||
| fs.StringVar(&bp.FileName, "file", "", "Input PE file") | ||
| fs.BoolVar(&bp.IAT, "iat", false, "Use IAT API resolver block instead of CRC API resolver block") | ||
| fs.BoolVar(&bp.IgnoreIntegrity, "ignore-checks", false, "Ignore integrity check errors.") | ||
| fs.StringVar(&bp.CustomStubName, "s", "", "Use custom stub file (experimental)") | ||
| fs.StringVar(&bp.CustomStubName, "stub", "", "Use custom stub file (experimental)") | ||
| fs.IntVar(&encoder.ObfuscationLimit, "max", 5, "Maximum number of bytes for obfuscation") | ||
| fs.IntVar(&encoder.EncodingCount, "e", 1, "Number of times to encode the generated reflective payload") | ||
| fs.BoolVar(&bp.BuildStub, "b", false, "Build EXE stub that executes the generated reflective payload") | ||
| fs.BoolVar(&bp.BuildStub, "build", false, "Build EXE stub that executes the generated reflective payload") | ||
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| // Parse arguments and check for errors | ||
| if err := fs.Parse(args); err != nil { | ||
| return nil, nil, err | ||
| cfg := new(Config) | ||
| parser, err := kong.New( | ||
| cfg, | ||
| kong.Help(HelpPrompt), | ||
| kong.UsageOnError(), | ||
| kong.Vars{"version": Version}, | ||
| kong.ConfigureHelp(kong.HelpOptions{ | ||
| Summary: true, | ||
| }), | ||
| ) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| _, err = parser.Parse(os.Args[1:]) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| // If it is not help and other args are empty, return error | ||
| if (*help == false) && bp.FileName == "" { | ||
| err := errors.New("please specify all required arguments") | ||
| return nil, nil, err | ||
| if cfg.FileName == "" { | ||
| utils.PrintErr("no file specified! (-f <empty>)\n") | ||
| kong.Help(HelpPrompt) | ||
| os.Exit(1) | ||
| } | ||
|
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| // If -help flag is defined, print help | ||
| if *help { | ||
| PrintHelpAndDie() | ||
| if cfg.OutputFile == "" { | ||
| cfg.OutputFile = fmt.Sprintf("%s.bin", cfg.FileName) | ||
| } | ||
|
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| return bp, encoder, nil | ||
| return cfg, nil | ||
| } | ||
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| func (cfg *Config) PrintSummary() { | ||
| utils.PrintStatus("File: %s\n", cfg.FileName) | ||
| utils.PrintStatus("Encode Count: %d\n", cfg.EncodeCount) | ||
| utils.PrintStatus("Obfuscation Limit: %d\n", cfg.ObfuscationLimit) | ||
| if cfg.UseIAT { | ||
| utils.PrintStatus("API Resolver: IAT\n") | ||
| } else { | ||
| utils.PrintStatus("API Resolver: CRC\n") | ||
| } | ||
| if cfg.UseSyscalls { | ||
| utils.PrintStatus("Raw Syscalls: True\n") | ||
| } | ||
| } |
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