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Xzlib0.dll Trojan Heuristic Analysis

Updated 12 days ago
Checked by Malware Check
xzlib0.dll

Technical Analysis

File Name xzlib0.dll
File Type
PE32+ executable (DLL) (console) x86-64, for MS Windows
Scanner Version 1.0.231.174
Database Version 2025-12-27 19:00:41 UTC
⚠

Trojan.Heur!.02212022

Malware family: Heuristic

Heuristic detection uses behavioral analysis and pattern recognition to identify potential threats without specific signatures. This proactive approach detects suspicious code behavior that may indicate malware presence. Detection may occasionally produce false positives when legitimate software exhibits similar behavioral patterns.
N/A
Detection Rate
12,291,584
File Size (bytes)
2025-12-27
Analysis Date

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File Identification

Hash Type Value Action
MD5
cb9371b1e9649967a5740fd123cd0fb0
SHA1
03b612318a494d1672f1ac3fc972544b3320fc9d
SHA256
8f24c0af8c944a134ab6ff8a4cb2f94b85dc8085e63dd93820d97b2590fdc9a6
SHA512
fee5ad202203b6eba1962bb85764a9e8552924e38b21e37fcccff31f529b63586949636829ec8317f4a6d9bd6872b387d948400a08e7edfd719bd75adea773a2
ImpHash
f074f05734c833b6765a05ba23e98088

PE Analysis

Basic Information

▼
Image Base 0x180000000
Entry Point 0x1807f74eb
Compilation Time 2025-09-11 09:06:03
Checksum 0x00000000 (Actual: 0x00bbabbd)
OS Version 6.0
PEiD Signatures PE32+ executable (DLL) (console) x86-64, for MS Windows
Digital Signature No valid SignedData structure was found.
Imports 9 libraries
KERNEL32, ADVAPI32, MSVCP140, VCRUNTIME140_1, VCRUNTIME140, api-ms-win-crt-stdio-l1-1-0, api-ms-win-crt-runtime-l1-1-0, api-ms-win-crt-filesystem-l1-1-0, api-ms-win-crt-heap-l1-1-0
Exports 1 functions
Resources 1 Resources
Sections 9 Sections

PE Sections

▼
Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
.text 0x00001000 17,687 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.rdata 0x00006000 247,262 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.data 0x00043000 3,408 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
.pdata 0x00044000 1,428 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.aspr0 0x00045000 7,272,345 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.aspr1 0x00735000 2,592 bytes 3,072 bytes 0.20 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE C00BC1471B2A7D93CCF5E9768B703CA5
.aspr2 0x00736000 12,286,436 bytes 12,286,464 bytes 7.85 (Packed/Encrypted) IMAGE_SCN_CNT_CODE|IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_NOT_PAGED|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ 1829235412C16BBC58719233AC9F2A5D
.reloc 0x012ee000 280 bytes 512 bytes 2.62 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ DEE6B908C0C184D3F67D2C2008119EEA
.rsrc 0x012ef000 469 bytes 512 bytes 4.73 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 506B814366A4AF5A6181DB12818B454E
Entropy Analysis Alert

1 section(s) with high entropy (≥7.5) detected - possible packing/encryption

Resource Analysis

▼
Total Resources: 1 (381 bytes)
Resource Type Count Total Size Percentage
RT_MANIFEST 1 381 bytes
100%

Certificate Chain Analysis

▼
No Digital Signatures

This file is not digitally signed.

Security Implications:
  • Cannot verify the publisher's identity
  • Increased security risk when running this file
  • May trigger security warnings on some systems

⚠ This file either lacks a digital signature or the certificate chain could not be verified
Exercise caution when executing unsigned files from unknown sources

Certificate Verification Status

No valid SignedData structure was found.

Recommendation: Verify the file source and ensure it comes from a trusted publisher.

Trojan.Heur!.02212022 Removal

Gridinsoft has the capability to identify and eliminate Trojan.Heur!.02212022 without requiring further user intervention.

Download Anti-Malware

Removal Instructions

Follow these steps to completely remove the threat from your system

  1. Start by downloading Gridinsoft Anti-Malware to your computer.
  2. Double-click on the gsam-en-install.exe file and follow the on-screen instructions to install the program.
  3. Once the installation of Gridinsoft Anti-Malware is complete, the program will open on the Scan screen.
  4. Click on the "Standard Scan" button to begin scanning your computer for threats.
  5. After the scanning process is finished, click on "Clean Now" to remove any detected threats.
  6. If prompted, restart your system to complete the removal process and ensure all threats are eliminated.
Important: Before You Start
Disconnect from the internet to prevent the malware from spreading or downloading additional threats. Run the scan in Safe Mode for better detection and removal of persistent threats.

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