Should I block it?

90%
90% of PCs block this file from running.
Possible reason:
Multiple malware detections

VersionsAdditional versions

1, 0, 0, 596 16.33%
1, 0, 0, 556 8.16%
1, 0, 0, 549 2.04%
1, 0, 0, 548 2.04%
1, 0, 0, 545 24.49%
1, 0, 0, 501 4.08%
1, 0, 0, 501 2.04%
1, 0, 0, 493 8.16%
1, 0, 0, 462 22.45%
1, 0, 0, 453 2.04%
1, 0, 0, 448 2.04%
1, 0, 0, 339 2.04%
1, 0, 0, 241 2.04%
1, 0, 0, 210 2.04%

Relationships

Parent process
Related files

GuardMailRu.exe

GuardMailRu Module by LLC Mail.Ru (Signed)

Remove GuardMailRu.exe
Version:   1, 0, 0, 556
MD5:   c3a0e7e5dea0414344c23d47faa45804
SHA1:   25b914bf6fe9e550b54d4a3c0fb8f0ad78d77c32
SHA256:   a7829c8c27fc34ed7c4abcc8e80e626b9f4d49b21d438bd7362eb822e220570d
Warning 3 antivirus scanners has detected malware.

Overview

guardmailru.exe is malware that runs as a service under the name Guard.Mail.ru within the local user context. It is set to be start when the PC boots and any user logs into Windows (added to the Run registry key for the all users under the local machine). It is installed with a couple of know programs including [email protected] published by Mail.Ru, [email protected] from Mail.Ru and [email protected] by Mail.Ru. The file is digitally signed by LLC Mail.Ru which was issued by the Thawte certificate authority (CA).

DetailsDetails

File name:guardmailru.exe
Product name:GuardMailRu Module
Typical file path:C:\Program Files\mail.ru\guard\guardmailru.exe
File version:1, 0, 0, 556
Size:2.29 MB (2,400,640 bytes)
Build date:8/8/2013 4:37 PM
Certificate
Issued to:LLC Mail.Ru
Authority (CA):Thawte
Effective date:Monday, September 12, 2011
Expiration date:Wednesday, July 2, 2014
Digital DNA
PE subsystem:Windows GUI
File packed:No
.NET CLR:No
More details

ResourcesPrograms

The following programs will install this file
Mail.Ru
42% remove
[email protected] is part of the Guard Mail service.
Mail.Ru
42% remove
Guard.Mail.ru is part of the Guard Mail service.

BehaviorsBehaviors

Services
Runs under 'SYSTEM\CurrentControlSet\Services' by the Service Controller (services.exe)
  • 'Guard.Mail.ru'
Startup files (all users) run
Runs under the registry key 'HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run'
  • 'Guard.Mail.ru.gui' → "C:\Program Files\Mail.Ru\Guard\GuardMailRu.exe" /gui
Network connections
  • [TCP] kojura.mail.ru (217.69.133.27:80)

  • MalwareMalware detections

    Based on 40+ industry antivirus scanners, 3 of them detected the following malware.
    Antivirus engineEngine versionDetection
    Baidu Antivirus 3.5.1.41473 Trojan.RuMail.4986
    Kingsoft 2013.4.9.267 Win32.HeurC.KVM019.a.(kcloud)
    Rising Antivirus 24.83.02.04 Trojan.RuMail!4986

    ResourcesResource utilization

    (Note: statistics below are averages based on a minimum sample size of 200 unique participants)
    Averages
     
    CPU
    Total CPU:0.00085079%
    0.028634%
    Kernel CPU:0.00040175%
    0.013761%
    User CPU:0.00044904%
    0.014873%
    Kernel CPU time:185,055,365 ms/min
    100,923,805ms/min
    Context switches:9/sec
    284/sec
    Memory
    Private memory:4.21 MB
    21.59 MB
    Private (maximum):11.22 MB
    Private (minimum):5.71 MB
    Non-paged memory:4.21 MB
    21.59 MB
    Virtual memory:81.34 MB
    140.96 MB
    Virtual memory (peak):88.72 MB
    169.69 MB
    Working set:8.32 MB
    18.61 MB
    Working set (peak):11.35 MB
    37.95 MB
    Resource allocations
    Threads:9
    12
    Handles:234
    600
    GUI GDI count:50
    103
    GUI GDI peak:70
    142
    GUI USER count:32
    49
    GUI USER peak:50
    71

    BehaviorsProcess properties

    Integrety level:System
    Platform:64-bit
    Command line:"C:\Program Files\mail.ru\guard\guardmailru.exe"
    Owner:User
    Windows Service
    Service name:Guard.Mail.ru
    Type:Win32OwnProcess
    Parent processes:

    Windows OS versionsDistribution by Windows OS

    OS versiondistribution
    Microsoft Windows XP 42.86%
    Windows 7 Ultimate 24.49%
    Windows 7 Home Basic 14.29%
    Windows 7 Home Premium 12.24%
    Windows 7 Professional 6.12%

    Distribution by countryDistribution by country

    Russia installs about 32.65% of GuardMailRu Module.

    OEM distributionDistribution by PC manufacturer

    PC Manufacturerdistribution
    ASUS 43.24%
    Samsung 13.51%
    Dell 10.81%
    Hewlett-Packard 10.81%
    GIGABYTE 8.11%
    American Megatrends 5.41%
    Lenovo 5.41%
    Acer 2.70%
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