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Xzlib0.dll Trojan Heuristic Analysis

Updated 1 day 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 1.0.222.174
Database Version 2025-08-01 17:00:20 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
14,011,904
File Size (bytes)
2025-08-01
Analysis Date

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File Identification

Hash Type Value Action
MD5
183b22518c47426a8ae11a1a7171beba
SHA1
d39265b2561af99c073e75f457fb58a9c54c6ead
SHA256
f9bbcaa7bffeca2bec8ec6b6cd92adc840f510b9609d88a6f71fa9ff3e2a0491
SHA512
b21d30d9fb4b7c607cd8ddf348b2bac3f011d8154912a76c56c88c79053fafa983d113c138339fb1a464de950748d23d230c97c76119e4b1cfe4dba6989b4c39
ImpHash
822f66e157a14b1fcb584d266eed3de2

PE Analysis

Basic Information

▼
Image Base 0x180000000
Entry Point 0x180846bda
Compilation Time 2025-07-31 15:34:58
Checksum 0x00000000 (Actual: 0x00d60101)
OS Version 6.0
PEiD Signatures PE32+ executable (DLL) (console) x86-64, for MS Windows
Digital Signature No valid SignedData structure was found.
Imports 8 libraries
KERNEL32, MSVCP140, VCRUNTIME140_1, VCRUNTIME140, api-ms-win-crt-stdio-l1-1-0, api-ms-win-crt-filesystem-l1-1-0, api-ms-win-crt-runtime-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 16,419 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.rdata 0x00006000 246,682 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.data 0x00043000 3,256 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
.pdata 0x00044000 1,344 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.aspr0 0x00045000 8,251,064 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ D41D8CD98F00B204E9800998ECF8427E
.aspr1 0x00824000 2,496 bytes 2,560 bytes 0.23 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE C57E9CEEEDE51ECD0E117B6FE25AB41F
.aspr2 0x00825000 14,006,944 bytes 14,007,296 bytes 7.84 (Packed/Encrypted) IMAGE_SCN_CNT_CODE|IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_NOT_PAGED|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ 7199BA39E2BED44D32C9D98B46A32656
.reloc 0x01581000 268 bytes 512 bytes 2.60 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 2A762924E2648389EDE8A68CCBCFDDB1
.rsrc 0x01582000 469 bytes 512 bytes 4.72 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 697CE4060B560108FEC2D242BC8188D5
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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