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"micro-behaviors/fs/file/write::fputc", "l": 2 }, { "d": "Characteristic system library exports", "e": [ "libc_start_main" ], "i": "micro-behaviors/dylib/library/libc::libc-characteristic-symbols", "l": 2 }, { "d": "Duplicate file descriptor", "e": [ "dup" ], "i": "micro-behaviors/process/fd/dup::dup", "l": 2 }, { "c": 0.8399999737739563, "d": "High basic block count in sparse binary", "e": [ "binary.total_basic_blocks = 4359.00" ], "i": "metadata/binary/metrics::dense-basic-blocks", "l": 1 }, { "c": 1.0, "d": "Binary has 30+ imports", "e": [ "binary.import_count = 136.00" ], "i": "metadata/binary/metrics::many-imports-30", "l": 1 }, { "c": 1.0, "d": "Binary has low average string entropy", "e": [ "binary.avg_string_entropy = 2.97" ], "i": "metadata/binary/metrics::avg-string-entropy-4-max", "l": 2 }, { "c": 0.800000011920929, "d": "Resolve GID to group name (getgrgid)", "e": [ "getgrgid" ], "i": "micro-behaviors/os/group/lookup::getgrgid", "l": 3 }, { "a": "T1486", "c": 0.75, "d": "flock LOCK_EX call bytecode pattern", "e": [ "be 8b 9b ff ff", "be 66 9b ff ff", "be f1 74 ff ff", "be e2 74 ff ff", "be 2b a4 fe ff" ], "i": "objectives/impact/ransom/esxi::flock-lockex", "l": 1, "m": "C0027" }, { "c": 0.6600000262260437, "d": "Create directories", "e": [ "mkdir" ], "i": "micro-behaviors/fs/directory/mkdir::mkdir-base", "l": 2 }, { "c": 1.0, "d": "Binary has 20+ imports", "e": [ "binary.import_count = 136.00" ], "i": "metadata/binary/metrics::many-imports-20", "l": 1 }, { "c": 0.6600000262260437, "d": "Open files", "e": [ "fopen" ], "i": "micro-behaviors/fs/file/open::fopen", "l": 2 }, { "c": 0.20000000298023224, "d": "Parse time string into time", "e": [ "strptime", "strptime@@GLIBC_2.2.5", "sym.imp.strptime" ], "i": "micro-behaviors/time/query::strptime", "l": 2 }, { "c": 0.6600000262260437, "d": "Uses opendir", "e": [ "opendir" ], "i": "micro-behaviors/fs/directory/readdir::readdir-opendir", "l": 2 }, { "c": 0.30000001192092896, "d": "Mirai proc format string", "e": [ "/proc/%d/task/", "/proc/%d/%s" ], "i": "well-known/malware/botnet/mirai::proc-format", "l": 1 }, { "c": 0.8999999761581421, "d": "ELF dynsym section name", "e": [ ".dynsym" ], "i": "metadata/binary/linking::elf-dynsym-section-name", "l": 2 }, { "c": 0.4000000059604645, "d": "Set file creation mask (umask)", "e": [ "umask" ], "i": "micro-behaviors/fs/chmod/modify::umask", "l": 2 }, { "c": 0.8999999761581421, "d": "ELF dynamic section name", "e": [ ".dynamic" ], "i": "metadata/binary/linking::elf-dynamic-section-name", "l": 2 }, { "c": 1.0, "d": "Binary format is identified", "e": [ "elf.class_bits = 64.00" ], "i": "metadata/binary::binary-format-checked", "l": 2 }, { "c": 1.0, "d": "Binary has 25+ imports", "e": [ "binary.import_count = 136.00" ], "i": "metadata/binary/metrics::many-imports-25", "l": 1 }, { "c": 1.0, "d": "Binary has 200+ exports (large library)", "e": [ "binary.export_count = 271.00" ], "i": "metadata/binary/metrics::many-exports-200", "l": 1 }, { "c": 0.8999999761581421, "d": "ELF interpreter section name", "e": [ ".interp" ], "i": "metadata/binary/linking::elf-interpreter-section-name", "l": 2 }, { "d": "Binary exports symbols", "e": [ "binary.export_count = 271.00" ], "i": "metadata/binary/symbols::has-exports", "l": 1 }, { "c": 1.0, "d": "Binary has 20+ exports", "e": [ "binary.export_count = 271.00" ], "i": "metadata/binary/metrics::many-exports-20", "l": 1 }, { "c": 0.30000001192092896, "d": "Sleep for nanosecond duration", "e": [ "nanosleep" ], "i": "micro-behaviors/time/query::nanosleep-func", "l": 2 }, { "c": 0.800000011920929, "d": "Compiler/project context token", "e": [ "clang version" ], "i": "micro-behaviors/dylib/library::llvm-project-ref-b", "l": 2 }, { "c": 0.699999988079071, "d": "RPATH/RUNPATH set (library injection vector)", "e": [ "elf.rpath_set = 1.00" ], "i": "metadata/hardening::rpath-set", "l": 3 }, { "c": 0.6600000262260437, "d": "Uses rewinddir", "e": [ "rewinddir" ], "i": "micro-behaviors/fs/directory/readdir::readdir-rewinddir", "l": 2 }, { "c": 0.6600000262260437, "d": "Uses fdopendir", "e": [ "fdopendir" ], "i": "micro-behaviors/fs/directory/readdir::readdir-fdopendir", "l": 2 }, { "c": 0.6600000262260437, "d": "Reference to /lib64", "e": [ "/lib64/ld-linux-x86-64.so.2" ], "i": "micro-behaviors/fs/path/system::system-lib64", "l": 2 }, { "c": 1.0, "d": "ELF64 class marker", "e": [ "elf.class_bits = 64.00" ], "i": "metadata/binary/metrics::elf64-class", "l": 1 }, { "c": 1.0, "d": "/tmp/ path component", "e": [ "/tmp/util-linux/_out/lib", "/tmp/util-linux/_out/share/locale" ], "i": "micro-behaviors/fs/path/temp::tmp-path-content", "l": 2 }, { "a": "T1059.006", "c": 0.6000000238418579, "d": "Named /tmp execution path", "e": [ "/tmp/util", "/tmp/util" ], "i": "objectives/command-and-control/dropper::tmp-path", "l": 1, "m": "B0024" }, { "c": 1.0, "d": "Binary has 40+ imports", "e": [ "binary.import_count = 136.00" ], "i": "metadata/binary/metrics::many-imports-40", "l": 1 }, { "c": 0.20000000298023224, "d": "output keyword", "e": [ "output", "failed to add output data", "failed to allocate output table", "-e, --export display in an export-able output format", "failed to allocate output line", "-l, --list force list output format (for example with --id)", "--notruncate don't truncate output", "-o, --output[=\u003clist\u003e] define the columns to output" ], "i": "micro-behaviors/data/text/keywords::output", "l": 1 }, { "c": 0.699999988079071, "d": "Version information string", "e": [ "--version" ], "i": "metadata/package/help::version-text", "l": 2 }, { "c": 0.699999988079071, "d": "Read file descriptor (read/pread)", "e": [ "read" ], "i": "micro-behaviors/fs/file/read::read", "l": 2 }, { "c": 0.8999999761581421, "d": "ELF dynstr section name", "e": [ ".dynstr" ], "i": "metadata/binary/linking::elf-dynstr-section-name", "l": 2 }, { "c": 1.0, "d": "Binary has 50+ functions", "e": [ "binary.function_count 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0.8999999761581421, "d": "No stack canary (stack smashing protection absent)", "e": [ "elf.stack_canary = 0.00" ], "i": "metadata/hardening::no-stack-canary", "l": 2 }, { "c": 0.30000001192092896, "d": "getenv function (read environment variable)", "e": [ "getenv", "sym.imp.getenv" ], "i": "micro-behaviors/os/env/vars::getenv", "l": 2 }, { "c": 0.6000000238418579, "d": "Binary not position-independent (no ASLR)", "e": [ "elf.e_type = 2.00" ], "i": "metadata/hardening::no-pie-struct", "l": 3 }, { "c": 0.8999999761581421, "d": "ELF dynsym section name", "e": [ ".dynsym" ], "i": "metadata/hardening::elf-dynsym-section-name", "l": 2 }, { "c": 0.8999999761581421, "d": "ELF dynamic section name", "e": [ ".dynamic" ], "i": "metadata/hardening::elf-dynamic-section-name", "l": 2 }, { "a": "T1033", "d": "Get password file entry by UID", "e": [ "getpwuid", "getpwuid@@GLIBC_2.2.5", "sym.imp.getpwuid" ], "i": "micro-behaviors/process/user/query::getpwuid", "l": 3, "m": "E1033" }, { "c": 0.6600000262260437, "d": "Reference to /tmp", "e": [ "/tmp/util-linux/_out/lib", "/tmp/util-linux/_out/share/locale", "/tmp/util-linux/_out/lib", "/tmp/util-linux/_out/share/locale" ], "i": "micro-behaviors/fs/path/temp::temp-tmp", "l": 2 }, { "a": "T1083", "c": 0.6600000262260437, "d": "Read temp directory from TMPDIR", "e": [ "getenv", "sym.imp.getenv", "TMPDIR" ], "i": "micro-behaviors/fs/temp/directory::directory-env", "l": 2, "m": "E1083" }, { "a": "T1497.003", "d": "Timing measurement with delays (sandbox/VM", "e": [ "nanosleep", "gettimeofday" ], "i": "objectives/anti-analysis/timing/evasion::timing-evasion", "l": 3, "m": "B0003.005" }, { "a": "T1069", "c": 0.699999988079071, "d": "User/group ID gathering", "e": [ "geteuid", "getgid", "getegid" ], "i": "objectives/discovery/host/permissions::uid-gid-gathering", "l": 1 } ], "sha": "1c4d8aab7b401ac3cb10d373097c252994668d0b1104f11126e6eec0b2fc8169", "path": "/data/samples/good/datasets/Labeled-Elfs/benignware/x86__64__lsb__unix-system-v__llvm-obfuscator-3.5.0__O3__mllvmsub_mllvmbcf__unstripped__util-linux-2.33__lsipc", "type": "elf" } ], "tv": "b2c18" } }