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Symsrv.dll Trojan Agent Analysis

Updated 10 months ago
Checked by Malware Check
symsrv.dll

Technical Analysis

File Name symsrv.dll
File Type
PE32 executable (DLL) (GUI) Intel 80386, for MS Windows, UPX compressed
Scanner Version 1.0.183.174
Database Version 2024-08-02 16:00:35 UTC
⚠

Trojan.Win32.Agent.oa

Malware family: Agent

Trojan Agent malware disguises itself as legitimate software while performing unauthorized activities including data theft and providing remote system access to threat actors.
N/A
Detection Rate
69,337
File Size (bytes)
2024-08-02
Analysis Date

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File Identification

Hash Type Value Action
MD5
7574cf2c64f35161ab1292e2f532aabf
SHA1
14ba3fa927a06224dfe587014299e834def4644f
SHA256
de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA512
4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
ImpHash
2f4ddcfebbcad3bacadc879747151f6f

PE Analysis

Basic Information

▼
Image Base 0x10000000
Entry Point 0x1002df80
Compilation Time 2012-12-06 17:32:32
Checksum 0x00000000 (Actual: 0x0001f436)
OS Version 4.0
PEiD Signatures PE32 executable (DLL) (GUI) Intel 80386, for MS Windows, UPX compressed
Digital Signature The PE file does not contain a certificate table.
Imports 3 libraries
KERNEL32, ADVAPI32, USER32
Exports 6 functions
Resources 1 Resources
Sections 3 Sections

Version Information

▼
Comments
CompanyName Microsoft Corporation
FileDescription LanguagePack
FileVersion 5, 1, 2600, 5512
InternalName LanguagePack
LegalCopyright (C) Microsoft Corporation. All rights reserved.
LegalTrademarks
OriginalFilename LanguagePack
PrivateBuild
ProductName Microsoft(C) Windows(C) Operating System
ProductVersion 5, 1, 2600, 5512
SpecialBuild
Translation 0x0409 0x04b0

PE Sections

▼
Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
UPX0 0x00001000 126,976 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_UNINITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
UPX1 0x00020000 61,440 bytes 57,856 bytes 7.91 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 31AF0E4E99531A071B07531A0C454F82
.rsrc 0x0002f000 4,096 bytes 1,536 bytes 3.74 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE E6C13AFA940231D3949D9D60D42F1E3A
Entropy Analysis Alert

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

Resource Analysis

▼
Total Resources: 1 (1,008 bytes)
Resource Type Count Total Size Percentage
RT_VERSION 1 1,008 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

The PE file does not contain a certificate table.

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

Trojan.Win32.Agent.oa Removal

Gridinsoft has the capability to identify and eliminate Trojan.Win32.Agent.oa 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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