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The Windows-KB890830-x64-V5.129.exe (Microsoft Windows Malicious Software Removal Tool (KB890830)) File Analysis

Updated 8 months ago
Checked by Malware Check
Windows-KB890830-x64-V5.129.exe

Technical Analysis

File Name Windows-KB890830-x64-V5.129.exe
File Type
PE32+ executable (GUI) x86-64, for MS Windows
Scanner Version 1.0.193.174
Database Version 2024-10-19 16:00:38 UTC
✓

Clean File

No threats detected by our scanner

0%
Detection Rate
76,629,432
File Size (bytes)
2024-10-19
Analysis Date

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File Identification

Hash Type Value Action
MD5
b23393a73c0a408bd2de319c59bf6b1c
SHA1
34e450b301ef837c22d1e0d082ce35e775e813c3
SHA256
1a7b30f5ba57b369ac289329021d2365fa1e9e76ac464a18652885ba39edf406
SHA512
6dd3e296e7103e94ba0fbac27a18e1b536b763d83fc692a67b970811b9cc1860104b530595d286c3ee5eeaf2442887141c6900ede1cac4e861fdf69d0a0d9d39
ImpHash
fefc7327c3074d233fbe1684e6857b49

PE Analysis

Basic Information

▼
Icon
Hash: b006398d9b80e0aab53e1d31d9e36759
Fuzzy: 3817709a8280a5927505cde0ffd73508
dHash: 488ee2e08e9ed4f4
Image Base 0x140000000
Entry Point 0x140014070
Compilation Time 2024-09-16 08:51:45
Checksum 0x04921388 (Actual: 0x04921388)
OS Version 10.0
PEiD Signatures PE32+ executable (GUI) x86-64, for MS Windows
PDB Path mrtstub.pdb
Digital Signature OK
Imports 6 libraries
ADVAPI32, KERNEL32, RPCRT4, ntdll, WINTRUST, CRYPT32
Exports 0 functions
Resources 6 Resources
Sections 6 Sections

Version Information

▼
CompanyName Microsoft Corporation
FileDescription Microsoft Windows Malicious Software Removal Tool (KB890830)
InternalName mrtstub.exe
LegalCopyright © Microsoft Corporation. All rights reserved.
OriginalFilename mrtstub.exe
ProductName Malicious Software Removal Tool
FileVersion 5.129.24100.1001 (c1477150f8ae3f0a41f9e4b39426ef400149d7eb)
ProductVersion 5.129.24100.1001
Translation 0x0409 0x04b0

PE Sections

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Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
.text 0x00001000 156,530 bytes 159,744 bytes 6.37 (Normal) IMAGE_SCN_CNT_CODE|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ 50E02BF48DF580BC8CE482C1037C2FAF
.rdata 0x00028000 65,826 bytes 69,632 bytes 5.40 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 8B4AEDA05D9BF1746A0975DAD11B8679
.data 0x00039000 9,744 bytes 4,096 bytes 2.81 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 2EE9399BE74FBFF452C9D570DA2E2D7B
.pdata 0x0003c000 8,496 bytes 12,288 bytes 4.14 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 33B8C24D06688DEDBF5CEE63C317F97E
.rsrc 0x0003f000 75,697,428 bytes 75,698,176 bytes 8.00 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ 0F195F1B6504F477FCE47449637D36DA
.reloc 0x04870000 1,652 bytes 4,096 bytes 3.05 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_DISCARDABLE|IMAGE_SCN_MEM_READ 89153617B40509C01D0ADD308D93E115
Entropy Analysis Alert

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

Resource Analysis

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Total Resources: 6 (75,696,969 bytes)
Resource Type Count Total Size Percentage
CABINET 1 75,689,480 bytes
100%
RT_ICON 2 5,392 bytes
0%
RT_GROUP_ICON 1 34 bytes
0%
RT_VERSION 1 1,028 bytes
0%
RT_MANIFEST 1 1,035 bytes
0%

Certificate Chain Analysis

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Certificate Information
Product Malicious Software Removal Tool
Description Microsoft Windows Malicious Software Removal Tool (KB890830)
File Version 5.129.24100.1001 (c1477150f8ae3f0a41f9e4b39426ef400149d7eb)
Original Name mrtstub.exe
Signing Date 08:52 AM 09/16/2024 (275 days ago)
Verification Status Signed
Signers Microsoft Windows; Microsoft Windows Production PCA 2011; Microsoft Root Certificate Authority 2010
Counter Signers Microsoft Time-Stamp Service; Microsoft Time-Stamp PCA 2010; Microsoft Root Certificate Authority 2010
Internal Name mrtstub.exe
Copyright © Microsoft Corporation. All rights reserved.
Certificate Chain Summary
Microsoft Windows #1 Primary
Validity Period: 2023-11-16 19:20:15 → 2024-11-14 19:20:15
Signature Algorithm: sha256RSA
Serial Number: 33 00 00 04 64 6A 33 6B 06 BC 9F B3 0D 00 00 00 00 04 64
Microsoft Windows Production PCA 2011 #2 Chain
Validity Period: 2011-10-19 18:41:42 → 2026-10-19 18:51:42
Signature Algorithm: sha256RSA
Serial Number: 61 07 76 56 00 00 00 00 00 08
Microsoft Time-Stamp Service #3 Chain
Validity Period: 2024-07-25 18:31:09 → 2025-10-22 18:31:09
Signature Algorithm: sha256RSA
Serial Number: 33 00 00 01 F9 1F 67 8D 75 AB A4 F1 B1 00 01 00 00 01 F9
Microsoft Time-Stamp PCA 2010 #4 Chain
Validity Period: 2021-09-30 18:22:25 → 2030-09-30 18:32:25
Signature Algorithm: sha256RSA
Serial Number: 33 00 00 00 15 C5 E7 6B 9E 02 9B 49 99 00 00 00 00 00 15

✓ This file has been digitally signed and the certificate chain has been verified

  • The signature ensures file integrity and authenticity from the publisher
  • Timestamping proves when the signature was applied
Certificate Verification Status

OK

Remember: This is Result of Online Virus Scanner

Gridinsoft Anti-Malware has a much more powerful virus scanning engine. We recommend using it for a more precise diagnosis of infected systems. This brief guide will help you install our flagship product for more accurate diagnostics:

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Keep Your System Protected

This file appears clean, but regular security maintenance is important

  1. Regular Scans: Run weekly system scans to detect new threats before they can cause damage.
  2. Keep Software Updated: Ensure your operating system and all applications have the latest security patches.
  3. Safe Browsing: Avoid suspicious websites and never download software from untrusted sources.
  4. Email Security: Be cautious with email attachments and links, even from known contacts.
Proactive Protection
This file passed all security checks, but stay vigilant. New malware variants appear daily that can evade detection. Always verify files come from official sources and check digital signatures when available.

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