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PE/ELF Malware Import Address Table (IAT) & Windows API Threat Scorer (2026)

Perform static malware triage on Windows PE Import Address Tables (IAT), Linux ELF symbols, and `strings` dumps: detect Process Injection, Process Hollowing, Keylogging, Anti-Debug, and Ransomware API chains mapped to MITRE ATT&CK.

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PE/ELF Malware Import Address Table (IAT) & Windows API Threat Scorer — Interactive Console
Runs locally in your browser • Instant output
Sample PE IAT Presets:
Malware Capability Risk Score
100 / 100
High-Confidence Offensive / Malicious Capabilities
Flagged Imports: 9
MITRE Tactics: 3
T1055 — Process Injection5 API(s)
VirtualAllocExKERNEL32.dll
Allocates executable memory inside a remote process virtual address space.
WriteProcessMemoryKERNEL32.dll
Writes shellcode or PE sections into remote process memory.
CreateRemoteThreadKERNEL32.dll
Spawns execution thread inside remote target process.
VirtualProtectExKERNEL32.dll
Flips memory page permissions from RW to RX/RWX.
OpenProcessKERNEL32.dll
Acquires PROCESS_ALL_ACCESS handle to target PID.
T1055.012 — Process Hollowing1 API(s)
NtUnmapViewOfSectionntdll.dll
Unmaps legitimate image section in suspended process for Process Hollowing.
T1622 — Debugger Evasion3 API(s)
IsDebuggerPresentKERNEL32.dll
Checks PEB.BeingDebugged flag to abort inside x64dbg/WinDbg.
CheckRemoteDebuggerPresentKERNEL32.dll
Queries kernel for attached debug port on process.
NtQueryInformationProcessntdll.dll
Queries ProcessDebugPort / ProcessDebugFlags directly via native API.
Auto-Generated YARA Hunting Rule
rule Suspicious_PE_IAT_Capabilities {
  meta:
    author = "Zero's Universe Threat Lab"
    risk_score = 100
  strings:
    $api1 = "VirtualAllocEx" ascii wide
    $api2 = "WriteProcessMemory" ascii wide
    $api3 = "CreateRemoteThread" ascii wide
    $api4 = "NtUnmapViewOfSection" ascii wide
    $api5 = "VirtualProtectEx" ascii wide
    $api6 = "OpenProcess" ascii wide
  condition:
    uint16(0) == 0x5A4D and 3 of ($api*)
}
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2026 Quick-Reference Cheat Sheet & Benchmark Table: PE/ELF Malware Import Address Table (IAT) & Windows API Threat Scorer

Quick Answer & 2026 Technical Summary (malware windows api import analyzer)Updated 2026 Standard

Because Windows executables do not statically bundle OS kernel code, the PE header contains an Import Directory listing external DLLs (like kernel32.dll or user32.dll) and function names. When the Windows loader maps the binary into memory, it resolves the real virtual addresses of those functions and writes them into the Import Address Table (IAT). Use this interactive malware windows api import analyzer above to test pe import address table iat threat scorer, windows api malware behavior mapping mitre attack, and virtualallocex writeprocessmemory createremotethread detector locally in your browser with zero server uploads.

Target Keyword Spec: malware windows api import analyzer | Modules: Behavioral API Chain Correlation (Injection, Hollowing & Dumping) • MITRE ATT&CK Technique & Sub-Technique Auto-Mapper • Packer / Dynamic API Resolution (GetProcAddress) Entropy Detector
Primary Focus: malware windows api import analyzer
Core Capability: pe import address table iat threat scorer
Privacy Mode: 100% Client-Side (Zero Upload)
Technical Parameter / ModuleStandard / Keyword SpecArchitecture & Validation RuleOperational Use Case (2026)
Behavioral API Chain Correlation (Injection, Hollowing & Dumping)pe import address table iat threat scorerDetect high-confidence multi-API attack chains such as Classic DLL/Shellcod...SOC Tier-2 & CEH v12 Static Malware Triage
MITRE ATT&CK Technique & Sub-Technique Auto-Mapperwindows api malware behavior mapping mitre attackMap over 90 dangerous Win32/NTAPI imports (KERNEL32, NTDLL, ADVAPI32, USER3...Identifying Evasive Direct Syscall & API Hashing Stubs
Packer / Dynamic API Resolution (GetProcAddress) Entropy Detectorvirtualallocex writeprocessmemory createremotethread detectorFlag suspiciously tiny Import Address Tables that rely solely on LoadLibrar...Rapid YARA Signature Authoring for Threat Hunting
Execution & Privacy Architecture100% Client-Side WebCrypto / JS Sandbox0 Bytes Sent to External ServersSafe for internal SOC & authorized lab artifacts
NIST SP 800-53 / OWASP AlignmentOWASP ASVS v4.0.3 / NIST CSF 2.0Deterministic Rule & Header VerificationMaps findings to actionable hardening controls
Cryptographic & Entropy StandardSHA-256 / AES-256-GCM / Argon2id≥ 128-bit Effective Security MarginMeets 2026 post-quantum & zero-trust baselines
In-Depth ZerosUniverse Tutorial

CEH Module 07: Malware Threats & Static Analysis Guide

Read our complete step-by-step editorial guide, architecture breakdown, and defensive best practices on ZerosUniverse.

Read Full Guide

How to Use PE/ELF Malware Import Address Table (IAT) & Windows API Threat Scorer

01

Paste PE Import Dump / Strings Output or Load a Malware Archetype

Paste raw output from `strings`, `dumpbin /imports`, `pefile`, or Ghidra—or load a preset archetype (Process Injector, Ransomware Locker, Keylogger Spyware, Packed Dropper).

02

Inspect the Composite Threat Score & Behavioral Kill-Chain Matches

Review the 0–100 Static Threat Score and see which multi-API attack chains (e.g., Remote Thread Injection or Credential Dumping) were fully or partially satisfied.

03

Explore the Categorized Windows API & MITRE ATT&CK Matrix

Filter matched APIs across Injection, Anti-Analysis/Sandbox Evasion, Spyware/Keylogging, Crypto/Ransomware, Persistence, and C2 Networking.

04

Export the Custom YARA Rule for Endpoint Hunting

Copy the auto-generated `import "pe"` YARA rule containing exact DLL/function import conditions for your EDR or VirusTotal Livehunt pipeline.

Key Capabilities & Technical Architecture

Behavioral API Chain Correlation (Injection, Hollowing & Dumping)

Detect high-confidence multi-API attack chains such as Classic DLL/Shellcode Injection (OpenProcess + VirtualAllocEx + WriteProcessMemory + CreateRemoteThread) and Process Hollowing (CreateProcessA + NtUnmapViewOfSection + SetThreadContext).

MITRE ATT&CK Technique & Sub-Technique Auto-Mapper

Map over 90 dangerous Win32/NTAPI imports (KERNEL32, NTDLL, ADVAPI32, USER32, WININET, BCRYPT) directly to MITRE ATT&CK IDs (T1055, T1056.001, T1622, T1486, T1003.001).

Packer / Dynamic API Resolution (GetProcAddress) Entropy Detector

Flag suspiciously tiny Import Address Tables that rely solely on LoadLibraryA + GetProcAddress or PEB walking to hide UPX, Themida, or custom crypter payloads.

Auto-Generated YARA Rule & Static Triage Report Builder

Generate a copy-ready YARA rule using the `pe` module (`pe.imports()`) and string conditions tailored to the exact suspicious imports discovered in your sample.

Practical Use Cases

SOC Tier-2 & CEH v12 Static Malware Triage

Paste the output of `objdump -x`, `dumpbin /imports`, `pefile`, or `strings` from a suspicious binary to classify its capabilities before executing it in a sandbox.

Identifying Evasive Direct Syscall & API Hashing Stubs

Spot samples that import minimal Win32 functions while containing NTDLL `NtAllocateVirtualMemory` / `NtWriteVirtualMemory` strings or ROR13/CRC32 API hash constants.

Rapid YARA Signature Authoring for Threat Hunting

Convert detected behavioral API clusters (such as CryptAcquireContext + FindFirstFileW + vssadmin shadow deletion) into deployable YARA hunting rules.

Frequently Asked Questions (FAQs)

What is the Import Address Table (IAT) in a Windows Portable Executable (PE) file?+

Because Windows executables do not statically bundle OS kernel code, the PE header contains an Import Directory listing external DLLs (like kernel32.dll or user32.dll) and function names. When the Windows loader maps the binary into memory, it resolves the real virtual addresses of those functions and writes them into the Import Address Table (IAT).

Why does the combination of VirtualAllocEx, WriteProcessMemory, and CreateRemoteThread indicate malware?+

Very few legitimate applications allocate executable memory inside a separate process (`VirtualAllocEx`), copy raw bytes into that remote process's address space (`WriteProcessMemory`), and spawn an execution thread there (`CreateRemoteThread`). Together, this trio forms the textbook MITRE ATT&CK T1055 Process Injection pattern.

What does it mean if a binary only imports LoadLibraryA and GetProcAddress?+

When a PE file has almost no visible imports except `LoadLibraryA` and `GetProcAddress` (or zero imports at all), the binary is almost certainly packed (e.g., UPX, VMProtect) or uses dynamic API hashing to resolve sensitive functions at runtime and evade static antivirus signatures.

Why do modern EDRs monitor NTDLL functions like NtAllocateVirtualMemory instead of Kernel32?+

High-level Win32 APIs in `kernel32.dll` (such as `VirtualAllocEx`) are merely wrapper stubs that call undocumented native APIs in `ntdll.dll` (`NtAllocateVirtualMemory`) before executing the `syscall` instruction into the kernel. Advanced malware bypasses `kernel32.dll` directly via Native API calls or Hell's Gate direct syscalls.

Does this analyzer execute binaries or upload files to a cloud sandbox?+

No. This is a 100% client-side static text/import analyzer. All API matching and YARA generation happen locally inside your browser tab.