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Update.exe Trojan Agent Analysis

Updated 8 days ago
Checked by Malaware Check
update.exe

Technical Analysis

File Name update.exe
File Type
PE32 executable (GUI) Intel 80386, for MS Windows
Scanner Version 1.0.217.174
Database Version 2025-05-30 01:00:17 UTC
⚠

Trojan.Win32.Agent.vb

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
12,540,416
File Size (bytes)
2025-05-30
Analysis Date

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File Identification

Hash Type Value Action
MD5
c5c8d4f5d9f26bac32d43854af721fb3
SHA1
e4119a28baa102a28ff9b681f6bbb0275c9627c7
SHA256
3e32145dca0843c6d5258129821afaaeb653ddef7982912fe85ad4b326807402
SHA512
09f39bccb210f96788193d597463c75d3213afd21ed93ac8c843f150d7cb8630f941f54cd8737cc88177dadeb479e8181b40a7f5219e40c948ff18d1955b4828
ImpHash
649f6ed9a4d576c154bbc0357156a4a4

PE Analysis

Basic Information

▼
Icon
Hash: 3d5dc4e5a911bee7292a914140092c8c
Fuzzy: a788a1c8239f81d6e401dd187d68f45e
dHash: b2b2e3e3e3a3a200
Image Base 0x00400000
Entry Point 0x0042800a
Compilation Time 2020-09-23 12:50:31
Checksum 0x00bff8bb (Actual: 0x00bff8bb)
OS Version 5.1
PEiD Signatures PE32 executable (GUI) Intel 80386, for MS Windows
Digital Signature No valid SignedData structure was found.
Imports 18 libraries
Exports 0 functions
Resources 21 Resources
Sections 5 Sections

Version Information

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Translation 0x0809 0x04b0

PE Sections

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Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
.text 0x00001000 581,597 bytes 581,632 bytes 6.68 (Compressed) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ 310E36668512D53489C005622BB1B4A9
.rdata 0x0008f000 195,982 bytes 196,096 bytes 5.76 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 748CF1AB2605CE1FD72D53D912ABB68F
.data 0x000bf000 36,724 bytes 20,992 bytes 1.20 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE AAE9601D920F07080BDFADF43DFEFF12
.rsrc 0x000c8000 11,711,152 bytes 11,711,488 bytes 8.00 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 52979C7C1D78660A46A2AB8DBBA674A6
.reloc 0x00bf4000 28,980 bytes 29,184 bytes 6.78 (Compressed) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_DISCARDABLE|IMAGE_SCN_MEM_READ F04128AD0F87F42830E4A6CDBC38C719
Entropy Analysis Alert

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

2 section(s) with elevated entropy (≥6.5) - possible compression

Resource Analysis

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Total Resources: 21 (11,709,958 bytes)
Resource Type Count Total Size Percentage
RT_ICON 9 23,720 bytes
0.2%
RT_STRING 7 8,900 bytes
0.1%
RT_RCDATA 1 11,675,962 bytes
99.7%
RT_GROUP_ICON 2 138 bytes
0%
RT_VERSION 1 220 bytes
0%
RT_MANIFEST 1 1,018 bytes
0%

Certificate Chain Analysis

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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.Win32.Agent.vb Removal

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