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auditbeat/module/file_integrity: Remove garbled Mach-O executable test file #37853

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auditbeat/module/file_integrity: Remove garbled Mach-O executable test file #37853

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686523e
Remove garbled Mach-O executable test file
chemamartinez Feb 4, 2024
5af00b5
Update changelog
chemamartinez Feb 4, 2024
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1 change: 1 addition & 0 deletions CHANGELOG-developer.next.asciidoc
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Original file line number Diff line number Diff line change
Expand Up @@ -185,3 +185,4 @@ The list below covers the major changes between 7.0.0-rc2 and main only.
- Deprecated the `common.Float` type. {issue}28279[28279] {pull}28280[28280]
- Deprecate Beat generators. {pull}28814[28814]
- Remove garbled PE executable test from auditbeat FIM module testing. {issue}35705[35705] {pull}35724[35724]
- Remove garbled Match-O executable test from auditbeat FIM module testing. {pull}37853[37853]
89 changes: 6 additions & 83 deletions auditbeat/module/file_integrity/exeobjparser_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -40,8 +40,12 @@ func TestExeObjParser(t *testing.T) {

key := fmt.Sprintf("%s_%s", builder, format)
t.Run(fmt.Sprintf("executableObject_%s_%s", format, builder), func(t *testing.T) {
if builder == "garble" && format == "pe" {
t.Skip("skipping test on garbled PE file: see https://github.com/elastic/beats/issues/35705")
if builder == "garble" {
if format == "pe" {
t.Skip("skipping test on garbled PE file: see https://github.com/elastic/beats/issues/35705")
} else if format == "macho" {
t.Skip("skipping test: garble_macho_executable is detected as malicious by Elastic endpoint")
}
}

got := make(mapstr.M)
Expand Down Expand Up @@ -409,85 +413,4 @@ var want = map[string]mapstr.M{
"go_stripped": false,
},
},
"garble_macho": {
"macho": mapstr.M{
"sections": []objSection{
{Name: strPtr("__text"), Size: uint64Ptr(0x80e52), Entropy: float64Ptr(6.17), VarEntropy: float64Ptr(0.0001)},
{Name: strPtr("__symbol_stub1"), Size: uint64Ptr(0x102), Entropy: float64Ptr(3.62), VarEntropy: float64Ptr(0.0001)},
{Name: strPtr("__rodata"), Size: uint64Ptr(0x367b3), Entropy: float64Ptr(4.28), VarEntropy: float64Ptr(0.0001)},
{Name: strPtr("__typelink"), Size: uint64Ptr(0x554), Entropy: float64Ptr(3.85), VarEntropy: float64Ptr(0.0001)},
{Name: strPtr("__itablink"), Size: uint64Ptr(0x78), Entropy: float64Ptr(2.61), VarEntropy: float64Ptr(0.0001)},
{Name: strPtr("__gosymtab"), Size: uint64Ptr(0x0), Entropy: float64Ptr(0.0), VarEntropy: float64Ptr(0.0001)},
{Name: strPtr("__gopclntab"), Size: uint64Ptr(0x5cf68), Entropy: float64Ptr(5.41), VarEntropy: float64Ptr(0.0001)},
{Name: strPtr("__go_buildinfo"), Size: uint64Ptr(0x20), Entropy: float64Ptr(3.85), VarEntropy: float64Ptr(0.0001)},
{Name: strPtr("__nl_symbol_ptr"), Size: uint64Ptr(0x158), Entropy: float64Ptr(0.0), VarEntropy: float64Ptr(0.0001)},
{Name: strPtr("__noptrdata"), Size: uint64Ptr(0x10780), Entropy: float64Ptr(5.59), VarEntropy: float64Ptr(0.0001)},
{Name: strPtr("__data"), Size: uint64Ptr(0x71f0), Entropy: float64Ptr(1.72), VarEntropy: float64Ptr(0.0001)},
{Name: strPtr("__bss"), Size: uint64Ptr(0x2f088), Entropy: float64Ptr(6.13), VarEntropy: float64Ptr(0.0001)},
{Name: strPtr("__noptrbss"), Size: uint64Ptr(0x51a0), Entropy: float64Ptr(5.55), VarEntropy: float64Ptr(0.0001)},
},
"import_hash": "d3ccf195b62a9279c3c19af1080497ec",
"imports": []string{
"___error",
"__exit",
"_clock_gettime",
"_close",
"_closedir",
"_execve",
"_fcntl",
"_fstat64",
"_getcwd",
"_getpid",
"_kevent",
"_kill",
"_kqueue",
"_lseek",
"_mach_absolute_time",
"_mach_timebase_info",
"_madvise",
"_mmap",
"_munmap",
"_open",
"_pipe",
"_pthread_attr_getstacksize",
"_pthread_attr_init",
"_pthread_attr_setdetachstate",
"_pthread_cond_init",
"_pthread_cond_signal",
"_pthread_cond_timedwait_relative_np",
"_pthread_cond_wait",
"_pthread_create",
"_pthread_kill",
"_pthread_mutex_init",
"_pthread_mutex_lock",
"_pthread_mutex_unlock",
"_pthread_self",
"_pthread_sigmask",
"_raise",
"_read",
"_sigaction",
"_sigaltstack",
"_stat64",
"_sysctl",
"_usleep",
"_write",
},
"imports_names_entropy": 4.132925542571368,
"imports_names_var_entropy": 0.002702653338037826,
"go_imports": []string{
"evnQ6ZcH.NEfVFrsU",
"evnQ6ZcH.NEfVFrsU.func1",
"evnQ6ZcH.obErrEr2",
"evnQ6ZcH.obErrEr2.func1",
"evnQ6ZcH.obErrEr2.func1.1",
"main.main",
"main.main.func1",
},
"symhash": "d3ccf195b62a9279c3c19af1080497ec",
"go_import_hash": "ea0346ba1d3c7c7e762864b7abd53399",
"go_imports_names_entropy": 4.527763863520965,
"go_imports_names_var_entropy": 0.004284997488747353,
"go_stripped": true,
},
},
}
Binary file removed auditbeat/module/file_integrity/testdata/garble_macho_executable
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