Xzlib0.dll Trojan Packed Analysis

Updated 2 hours ago

Checked by Malware Check

xzlib0.dll

Technical Analysis

File Name	xzlib0.dll
File Type	PE32+ executable (DLL) (console) x86-64 (stripped to external PDB), for MS Windows
Scanner Version	1.0.251.174
Database Version	2026-08-03 11:00:18 UTC

⚠

Trojan.Win64.Packed.cl

Malware family: Packed

Packed malware uses compression, encryption, or obfuscation techniques to alter code appearance and evade security detection. These methods modify the original malware structure to bypass signature-based detection systems and complicate analysis efforts.

N/A

Detection Rate

12,611,584

File Size (bytes)

2026-08-03

Analysis Date

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File Identification

Hash Type	Value	Action
MD5	cf868aa593aa165e3e6a69860e69b5f5
SHA1	fd197c9b486c8c2e3b8f8cf212cd58d01bce6e15
SHA256	60ec12203e594dca477c66e2656adc6ae7e896478258fab2a9193e930e287ade
SHA512	71b21ef177f90a832199613da7213073bf59100a84d7e4a86fa62495730806cf19947c796a5cc618ed920048fdbfb4eedaf76ed22aa0759e675dae3513d623d3
ImpHash	99c6bb3e6cc86a2f144212732f3cbebb

PE Analysis

Basic Information

▼

Image Base	`0x385000000`
Entry Point	`0x385891638`
Compilation Time	2026-07-10 13:54:31
Checksum	0x00c08183 (Actual: 0x00c08183)
OS Version	5.2
PEiD Signatures	`PE32+ executable (DLL) (console) x86-64 (stripped to external PDB), for MS Windows`
Digital Signature	No valid SignedData structure was found.
Imports	14 libraries
Exports	1 functions
Resources	0 Resources
Sections	13 Sections

PE Sections

▼

Name	Virtual Address	Virtual Size	Raw Size	Entropy	Characteristics	MD5
`.text`	`0x00001000`	777,296 bytes	0 bytes	0.00 (Normal)	`IMAGE_SCN_CNT_CODE\|IMAGE_SCN_MEM_EXECUTE\|IMAGE_SCN_MEM_READ`	`D41D8CD98F00B204E9800998ECF8427E`
`.data`	`0x000bf000`	8,864 bytes	0 bytes	0.00 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ\|IMAGE_SCN_MEM_WRITE`	`D41D8CD98F00B204E9800998ECF8427E`
`.rdata`	`0x000c2000`	298,760 bytes	0 bytes	0.00 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ`	`D41D8CD98F00B204E9800998ECF8427E`
`.pdata`	`0x0010b000`	44,172 bytes	0 bytes	0.00 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ`	`D41D8CD98F00B204E9800998ECF8427E`
`.xdata`	`0x00116000`	60,016 bytes	0 bytes	0.00 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ`	`D41D8CD98F00B204E9800998ECF8427E`
`.bss`	`0x00125000`	4,000 bytes	0 bytes	0.00 (Normal)	`IMAGE_SCN_CNT_UNINITIALIZED_DATA\|IMAGE_SCN_MEM_READ\|IMAGE_SCN_MEM_WRITE`	`D41D8CD98F00B204E9800998ECF8427E`
`.edata`	`0x00126000`	69 bytes	0 bytes	0.00 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ`	`D41D8CD98F00B204E9800998ECF8427E`
`.idata`	`0x00127000`	4,676 bytes	0 bytes	0.00 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ`	`D41D8CD98F00B204E9800998ECF8427E`
`.tls`	`0x00129000`	16 bytes	0 bytes	0.00 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ\|IMAGE_SCN_MEM_WRITE`	`D41D8CD98F00B204E9800998ECF8427E`
`.aspr0`	`0x0012a000`	7,284,487 bytes	0 bytes	0.00 (Normal)	`IMAGE_SCN_CNT_CODE\|IMAGE_SCN_MEM_EXECUTE\|IMAGE_SCN_MEM_READ`	`D41D8CD98F00B204E9800998ECF8427E`
`.aspr1`	`0x0081d000`	2,712 bytes	3,072 bytes	0.26 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_READ\|IMAGE_SCN_MEM_WRITE`	`F1970862E2B460EE476B13D6D403D95A`
`.aspr2`	`0x0081e000`	12,606,700 bytes	12,606,976 bytes	7.86 (Packed/Encrypted)	`IMAGE_SCN_CNT_CODE\|IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_NOT_PAGED\|IMAGE_SCN_MEM_EXECUTE\|IMAGE_SCN_MEM_READ`	`59887171C5F4BE104B98DFE34D769C34`
`.reloc`	`0x01424000`	264 bytes	512 bytes	2.51 (Normal)	`IMAGE_SCN_CNT_INITIALIZED_DATA\|IMAGE_SCN_MEM_DISCARDABLE\|IMAGE_SCN_MEM_READ`	`67F74E778A04C0D87CA1138720FB194D`

Entropy Analysis Alert

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

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.Win64.Packed.cl Removal

Gridinsoft has the capability to identify and eliminate Trojan.Win64.Packed.cl without requiring further user intervention.

Download Anti-Malware

Removal Instructions

Follow these steps to completely remove the threat from your system

1
Get Gridinsoft Anti-Malware — it's a quick 2 MB download that won't slow down your PC.
2
Run the installer gsam-en-install.exe. The setup takes about 2 minutes and doesn't require a restart.
3
The app launches right after installation. You'll see the main dashboard with the scan button front and center.
4
Hit "Standard Scan" — this checks all the spots where malware typically hides: temp folders, browser data, startup programs, and system directories.
5
Once the scan finds this threat, click "Clean Now". The removal usually happens instantly, though some stubborn infections may need a reboot.
6
If you see a restart prompt, go ahead and reboot. This clears any malware that was running in memory and ensures your system starts fresh.

Important: Before You Start

Quick tip: unplug from the internet before scanning. Some malware phones home for instructions or downloads extra payloads when it senses trouble. If the infection is severe, boot into Safe Mode first — it limits what can run and makes cleanup easier.

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