mailruupdater.exe threat report

MD5 6378db4ea5c177af9f490cdd489b8bd5
Latest seen 2021-04-15 20:44:58 (5 years ago)
First seen 2017-06-01 06:10:22 (8 years ago)
Size 811 KB
Publisher Mail.Ru
Product MailRuUpdater
Signed by LLC Mail.Ru

GridinSoft Anti-Malware detection

Detected by GridinSoft before you download

The current ThreatInfo record shows this exact file hash detected as PUP.MailRu. Download GridinSoft Anti-Malware to scan the device, confirm whether this file is present, and remove the detected object if it is found.

Detection name
PUP.MailRu
Recommended action
Scan and remove
Last analysis
2021-04-15 20:44:58 (5 years ago)
File hash
6378db4ea5c177af9f490cdd489b8bd5
Download Anti-Malware

Why it matters

Why GridinSoft flags this file

Detection

GridinSoft identifies the sample as PUP.MailRu.

Timeline

First seen 2017-06-01 06:10:22 (8 years ago); latest analysis 2021-04-15 20:44:58 (5 years ago).

Publisher context

Company metadata: Mail.Ru. Product metadata: MailRuUpdater.

Digital signature

Signed by LLC Mail.Ru. The signature is reported as valid, but signed files can still be bundled or abused.

Aliases

This hash has appeared under multiple file names, which can happen with repackaging, bundling, or deliberate renaming.

Observed locations

ThreatInfo has seen this file in user or system paths listed below. Unexpected locations increase the need for local verification.

Recommended action

What to do next

  1. Compare the MD5 above with the file found on the device.
  2. Check whether the file appears in the observed locations or under one of the alternate names.
  3. Run GridinSoft Anti-Malware to confirm the detection and remove the file if it is present.

mailruupdater.exe is a Windows file recorded in the ThreatInfo database. It is associated with MailRuUpdater. The reported company name is Mail.Ru. The current detection status is PUP.MailRu, based on the latest analysis from 2021-04-15 20:44:58 (5 years ago).

If mailruupdater.exe appears on your computer unexpectedly, treat it as suspicious. Check its location, digital signature, and recent system changes before allowing it to run. A full anti-malware scan is recommended when this file is detected as PUP.MailRu.

Product Name: MailRuUpdater
Company Name: Mail.Ru
MD5: 6378db4ea5c177af9f490cdd489b8bd5
Size: 811 KB
First Published: 2017-06-01 06:10:22 (8 years ago)
Latest Published: 2021-04-15 20:44:58 (5 years ago)
Status: PUP.MailRu (on last analysis)
Analysis Date: 2021-04-15 20:44:58 (5 years ago)
mailruupdater.exe detection screenshot

The screenshot is a visual record of a GridinSoft Anti-Malware detection for this sample. Use the hash and metadata above as the primary identifiers when comparing the file on your system.

Signed By: LLC Mail.Ru
Status: Valid

The signature on mailruupdater.exe is reported as valid. A valid signature helps confirm publisher identity, but it does not automatically make the file safe if the installer was bundled, abused, or downloaded from an untrusted source.

%localappdata%\mail.ru
%profile%\dmin\local settings\application data
%sysdrive%\(локальный диск\sergeypc\backup set 2012-01-17 103848\backup files 2012-03-05 122936\backup files 1.zip\c\users\сергей\appdata\local
%sysdrive%\sergeypc\backup set 2012-01-17 103848\backup files 2012-03-05 122936\backup files 1.zip\c\users\сергей\appdata\local
%localappdata%
%sysdrive%\kompi\backup set 2012-11-25 190006\backup files 2012-11-25 190006\backup files 6.zip\f\users\sporkey\appdata\local
%sysdrive%\kompi\backup set 2012-08-19 190004\backup files 2012-08-19 190004\backup files 2.zip\f\users\sporkey\appdata\local
%sysdrive%\system volume information\_restore{ab7f0487-e247-4fd0-92df-22ae6832e8ac}
%sysdrive%\system volume information\_restore{c3767e68-8e59-49d6-a2f9-a2c114c4a8de}

ThreatInfo has observed mailruupdater.exe in the locations listed above. Files found in temporary folders, user profile folders, startup locations, or unusual application directories should be reviewed more carefully than files installed under a known program directory.

MailRuUpdater.exe.old
MailRuUpdater.exe
mailruupdater.exe

This hash has been seen with multiple file names. Alternate names can appear when software is updated, copied between folders, packed by an installer, or deliberately renamed to avoid recognition. Compare the exact MD5 above before assuming two names refer to the same file.

45.5%
36.4%
9.1%
9.1%

The strongest geographic signal for this file is Kazakhstan with 45.5% of observed hits. Geographic distribution can help identify targeted campaigns, regional software bundles, or where a file is most commonly reported.

Windows 7 72.7%
Windows 10 27.3%

The most common operating system signal for mailruupdater.exe is Windows 7 with 72.7% of observed hits. If your system differs from the common profile, check whether the file was introduced by a specific installer, archive, or removable device.

mailruupdater.exe is identified as pe for 32 systems. The subsystem is Windows GUI. PE header values are useful for triage, especially when they do not match the expected publisher, product, or release timeline.

Subsystem: Windows GUI
PE Type: pe
OS Bitness: 32
Image Base: 0x00400000
Entry Address: 0x0007472e

PE Sections:

Name Size of data MD5
.text 621056 d3c4f03be3c8932258328868f78d18f2
.rdata 111616 c04b230ab1c681542c801add7c908382
.data 22016 b6236240ce243d6c8f139d996a4c7a11
.tls 512 bf619eac0cdf3f68d496ea9344137e8b
.rsrc 27136 2d5ccaea6935b6bf699baa4b76ba0b22
.reloc 41984 e544318c4bfd882d77b55a4dc5299b99

PE section names and hashes can reveal packing, injected resources, or unusual build artifacts. Sections with uncommon names, very large raw data, or hashes that differ from a trusted copy deserve additional review.

More information: