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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. While running, it connects to the Internet address mrds.mail.ru on port 80 using the HTTP protocol.
Publisher:
LLC Mail.Ru  (signed and verified)

Product:
GuardMailRu Module

Version:
1, 0, 10, 829

MD5:
23e0d74c0f11124c53743a950fe0621b

SHA-1:
6c5ff9fc03f4bc49d913aa54a753503c6e76c29f

SHA-256:
483545f031bdf1f387657afca29e14286e28dba02cadf47b08586a6783a558aa

Scanner detections:
12 / 68

Status:
Potentially unwanted

Analysis date:
4/23/2024 5:44:40 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:BrowserTakeover-A [PUP]
2014.9-141031

AVG
MalSign.Generic
2015.0.3304

Baidu Antivirus
Trojan.Win32.RuMail
4.0.3.141031

Bkav FE
W32.Clodc0a.Trojan
1.3.0.4613

Comodo Security
Application.Win32.RuMail.pwhe
17604

Dr.Web
Adware.Downware.533
9.0.1.0304

McAfee
Artemis!E3169A1E78E0
5600.6960

Reason Heuristics
PUP.Optional.MailRu.L
14.10.31.19

Rising Antivirus
PE:Trojan.RuMail!1.6574
23.00.65.141029

Sophos
RsMall
4.96

Trend Micro House Call
TROJ_GEN.F47V1102
7.2.304

XVirus List
Win.Detected
2.3.31

File size:
3.8 MB (3,955,432 bytes)

Product version:
1, 0, 10, 829

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:
LLC Mail.Ru

Authority:
Thawte, Inc.

Valid from:
8/19/2014 4:00:00 AM

Valid to:
8/13/2016 3:59:59 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:
3C484F9655CF5CDDA51678E773A55BF3

File PE Metadata
Compilation timestamp:
10/30/2014 6:22:52 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
98304:+fUlNVR/2g8t/SMd6mr0r5OtRuFxTb5QhwCincl:lVR/2gM6mr0r5ODVwWl

Entry address:
0x1E838C

Entry point:
E8, 75, 12, 01, 00, E9, 7F, FE, FF, FF, E9, 80, 02, 00, 00, 6A, 0C, 68, B8, 8E, 75, 00, E8, E9, 13, 01, 00, 83, 65, E4, 00, 8B, 5D, 0C, 8B, C3, 8B, 7D, 10, 0F, AF, C7, 8B, 75, 08, 03, F0, 89, 75, 08, 83, 65, FC, 00, 4F, 89, 7D, 10, 78, 0C, 2B, F3, 89, 75, 08, 8B, CE, FF, 55, 14, EB, EE, 33, C0, 40, 89, 45, E4, C7, 45, FC, FE, FF, FF, FF, E8, 14, 00, 00, 00, E8, EA, 13, 01, 00, C2, 10, 00, 8B, 7D, 10, 8B, 5D, 0C, 8B, 75, 08, 8B, 45, E4, 85, C0, 75, 0B, FF, 75, 14, 57, 53, 56, E8, 01, 00, 00, 00, C3, 6A, 14...
 
[+]

Code size:
2.8 MB (2,934,784 bytes)

The executing file has been seen to make the following network communications in live environments.

TCP (HTTP):
Connects to mrds.mail.ru  (217.69.139.245:80)

TCP (HTTP):
Connects to xml.binupdate.mail.ru  (217.69.139.247:80)

TCP (HTTP):
Connects to moscow.cdnmail.ru  (217.69.139.110:80)

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