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mrupdsrv.exe

Mail.Ru Update Service

LLC Mail.Ru

The executable mrupdsrv.exe has been detected as malware by 1 anti-virus scanner. It is set to automatically start when a user logs into Windows via the current user run registry key under the display name ‘mrupdsrv’.
Publisher:
Mail.Ru  (signed by LLC Mail.Ru)

Product:
Mail.Ru Update Service

Version:
3.3.0.7

MD5:
4d0704e8abed2656dc4c02c08676d7ae

SHA-1:
74db07219f6d54d5eb7c90da139e1adba91fa31d

SHA-256:
5dacd47f0b1ff3d3c0c800e167f1964dc09fe2931abbdbc7d4920fad89e04b15

Scanner detections:
1 / 68

Status:
Malware

Analysis date:
12/23/2024 11:06:05 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Reason Heuristics
Win32.Generic
17.3.15.17

File size:
2.1 MB (2,187,992 bytes)

Product version:
3.3.0.7

Copyright:
Copyright 2015

Original file name:
mrupdsrv.exe

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\mail.ru\update service\mrupdsrv.exe

Digital Signature
Signed by:
LLC Mail.Ru

Authority:
thawte, Inc.

Valid from:
8/6/2015 3:00:00 AM

Valid to:
10/5/2017 2:59:59 AM

Subject:
CN=LLC Mail.Ru, O=LLC Mail.Ru, L=Moscow, S=Moscow, C=RU

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
2019877A933D8E2E71548EA4AB4827F1

File PE Metadata
Compilation timestamp:
5/31/2016 2:53:53 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0x113F59

Entry point:
E8, 5C, FB, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 56, 8B, 75, 08, 57, 83, CF, FF, 85, F6, 75, 14, E8, F8, 1C, 00, 00, C7, 00, 16, 00, 00, 00, E8, 91, C7, 00, 00, 0B, C7, EB, 45, F6, 46, 0C, 83, 74, 39, 56, E8, FA, 00, 00, 00, 56, 8B, F8, E8, 3F, FE, 00, 00, 56, E8, A0, FC, 00, 00, 50, E8, BE, FC, 00, 00, 83, C4, 10, 85, C0, 79, 05, 83, CF, FF, EB, 13, 83, 7E, 1C, 00, 74, 0D, FF, 76, 1C, E8, EC, F1, FF, FF, 83, 66, 1C, 00, 59, 83, 66, 0C, 00, 8B, C7, 5F, 5E, 5D, C3, 6A, 0C, 68, 30, 8E, 5E, 00, E8, 05, BF...
 
[+]

Entropy:
6.5579

Code size:
1.6 MB (1,645,056 bytes)

Startup File (User Run)
Registry location:
HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

Name:
mrupdsrv

Command:
"C:\users\{user}\appdata\local\mail.ru\update service\mrupdsrv.exe" --u


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