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mrswitcher.exe

Mail.Ru Switcher

Mail.Ru LLC

The file mrswitcher.exe by Mail.Ru has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat. While running, it connects to the Internet address conserv.go.mail.ru on port 443.
Publisher:
Mail.Ru  (signed by Mail.Ru LLC)

Product:
Mail.Ru Switcher

Version:
3.10.0.2

MD5:
79e8bdc886c9b58eb6453b3aafc1757d

SHA-1:
e1e1997f2a09db2c48b5f96403c760c6cec619c1

SHA-256:
3f5a6ecd0d956e890dbfff2d1b3104b223d9a5691c3128abc480bc20fe1a08a4

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
2/24/2025 11:38:00 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Bundler (M)
17.1.24.21

File size:
1.8 MB (1,934,976 bytes)

Product version:
3.10.0.2

Copyright:
Copyright 2015

Original file name:
mrswitcher.exe

Common path:
C:\users\{user}\appdata\local\temp\upd5788.tmp

Digital Signature
Signed by:
Mail.Ru LLC

Authority:
Symantec Corporation

Valid from:
7/6/2016 3:00:00 AM

Valid to:
7/7/2017 2:59:59 AM

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

Issuer:
CN=Symantec Class 3 SHA256 Code Signing CA, OU=Symantec Trust Network, O=Symantec Corporation, C=US

Serial number:
16F89FF5A6CD11A76E9963DAC485D65F

File PE Metadata
Compilation timestamp:
1/17/2017 10:42:00 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

Entry address:
0xA5642

Entry point:
E8, 82, EA, 00, 00, E9, 7F, FE, FF, FF, FF, 35, D4, A9, 5C, 00, FF, 15, A8, 31, 58, 00, 85, C0, 74, 02, FF, D0, 6A, 01, 6A, 00, E8, BE, AB, 00, 00, 59, 59, E9, D6, AB, 00, 00, 55, 8B, EC, 83, EC, 10, EB, 0D, FF, 75, 08, E8, 11, EE, 00, 00, 59, 85, C0, 74, 11, FF, 75, 08, E8, 19, 3E, 00, 00, 59, 85, C0, 74, E6, 8B, E5, 5D, C3, 6A, 01, 8D, 45, FC, C7, 45, FC, D8, 4F, 58, 00, 50, 8D, 4D, F0, E8, 64, 08, 00, 00, 68, C0, 4B, 5B, 00, 8D, 45, F0, C7, 45, F0, D0, 4F, 58, 00, 50, E8, 77, 09, 00, 00, CC, 56, 6A, 04...
 
[+]

Entropy:
6.6024

Code size:
1.5 MB (1,577,984 bytes)

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

TCP (HTTP SSL):
Connects to conserv.go.mail.ru  (217.69.139.122:443)

TCP (HTTP):
Connects to app-gw1.argonlabs.ru  (178.32.30.51:80)

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

TCP (HTTP SSL):
Connects to disload.go.mail.ru  (217.69.143.176:443)

TCP (HTTP SSL):
Connects to moscow.cdnmail.ru  (94.100.180.110:443)

TCP (HTTP):
Connects to app-gw2.argonlabs.ru  (178.33.195.199:80)

TCP (HTTP):
Connects to 2link9.ext.terrhq.ru  (178.22.89.57:80)

TCP (HTTP):
Connects to 2link5.1l.mail.ru  (178.22.88.111:80)

TCP (HTTP):
Connects to 2link0.1l.mail.ru  (178.22.88.98:80)

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