GuardMailRu.exe

GuardMailRu Module

LLC Mail.Ru

The application GuardMailRu.exe by LLC Mail.Ru has been detected as a potentially unwanted program by 12 anti-malware scanners. This file is typically installed with the program Guard@Mail.Ru by Mail.Ru. While running, it connects to the Internet address kojura.mail.ru on port 80 using the HTTP protocol.
Publisher:
LLC Mail.Ru  (signed and verified)

Product:
GuardMailRu Module

Version:
1, 0, 1, 662

MD5:
c9690d0e10903407a414f66adfa1ae27

SHA-1:
44c53c6950feff90d9b6eae711ae1dc06c2e76df

Scanner detections:
12 / 68

Status:
Potentially unwanted

Analysis date:
11/27/2024 1:51:20 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:BrowserTakeover-A [PUP]
2014.9-140430

AVG
MalSign.Generic
2015.0.3489

Baidu Antivirus
Trojan.Win32.RuMail
4.0.3.14430

Bkav FE
W32.Clodc0a.Trojan
1.3.0.4613

Comodo Security
Application.Win32.RuMail.pwhe
17604

Dr.Web
Adware.Downware.533
9.0.1.0120

McAfee
Artemis!E3169A1E78E0
5600.7145

Reason Heuristics
PUP.Optional.MailRu.L
14.4.30.10

Rising Antivirus
PE:Trojan.RuMail!1.6574
23.00.65.14428

Sophos
RsMall
4.96

Trend Micro House Call
TROJ_GEN.F47V0428
7.2.120

XVirus List
Win.Detected
2.3.31

File size:
6.5 MB (6,835,232 bytes)

Product version:
1, 0, 1, 662

Copyright:
Copyright 2010

Original file name:
GuardMailRu.exe

File type:
Executable application (Win32 EXE)

Common path:
C:\Program Files\mail.ru\guard\guardmailru.exe

Digital Signature
Signed by:

Authority:
Thawte, Inc.

Valid from:
1/14/2014 2:00:00 AM

Valid to:
3/15/2016 1:59:59 AM

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

Issuer:
CN=Thawte Code Signing CA - G2, O="Thawte, Inc.", C=US

Serial number:
391BE08AD60C2810187D12419BF289D9

File PE Metadata
Compilation timestamp:
4/28/2014 6:37:12 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
98304:zQ9riL6oXCwU/QiV6GuXJLl/LkXRtyL7J4yrZPJiq/LXKMUXTTSFaSTcHG0TZg5C:M92cwVn/LkqnayrTzXbYnO0mDe8ioBM

Entry address:
0x1A7BF0

Entry point:
E8, 34, AF, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 5D, E9, 86, 0F, 00, 00, 8B, FF, 55, 8B, EC, FF, 75, 08, 51, E8, 21, B0, 00, 00, 59, 59, 5D, C2, 04, 00, 8B, FF, 51, C7, 01, C4, 6D, 65, 00, E8, 9D, AF, 00, 00, 59, C3, 8B, FF, 55, 8B, EC, 56, 8B, F1, E8, E3, FF, FF, FF, F6, 45, 08, 01, 74, 07, 56, E8, B8, FF, FF, FF, 59, 8B, C6, 5E, 5D, C2, 04, 00, 8B, FF, 55, 8B, EC, 8B, 45, 08, 83, C1, 09, 51, 83, C0, 09, 50, E8, D1, B0, 00, 00, F7, D8, 59, 1B, C0, 59, 40, 5D, C2, 04, 00, CC, CC, CC, CC, CC, CC...
 
[+]

Entropy:
7.6118

Code size:
2.2 MB (2,260,480 bytes)

The file GuardMailRu.exe has been discovered within the following programs.

Guard.Mail.ru  by Mail.Ru
Guard.Mail.ru is part of the Guard Mail service.
www.mail.ru
42% remove it
Guard@Mail.Ru  by Mail.Ru
Guard@Mail.Ru is part of the Guard Mail service.
42% remove it
 
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The executing file has been seen to make the following network communication in live environments.

TCP (HTTP):
Connects to kojura.mail.ru  (217.69.133.27:80)

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