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maintainer.bak

surf slide

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file maintainer.bak by surf slide has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
surf slide  (signed and verified)

Version:
1.0.5457.11431

MD5:
9d79dae194ffcbd824b49d7c5461eec9

SHA-1:
bf7ceb41fb5e55a21b61bd21f054f47276e50b02

SHA-256:
7fecd468ab71394b6065d46b06d9907105c959fde9ac8b8ceb73085154e53e29

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
12/23/2024 11:35:18 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.16.5

File size:
120.7 KB (123,632 bytes)

Product version:
1.0.5457.11431

Language:
English (United States)

Common path:
C:\ProgramData\261dd56e-54fa-4b60-a9fd-40a3504f3053\maintainer.bak

Digital Signature
Signed by:
surf slide

Authority:
VeriSign, Inc.

Valid from:
9/1/2014 9:00:00 PM

Valid to:
9/2/2015 8:59:59 PM

Subject:
CN=surf slide, O=surf slide, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
40C4725F1712C4789A4BDCEA560D5BE2

File PE Metadata
Compilation timestamp:
12/10/2014 11:21:09 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

Entry address:
0x8A72

Entry point:
E8, 95, 57, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A1, 68, B2, 41, 00, 33, C5, 89, 45, FC, 83, 7D, 08, FF, 57, 74, 09, FF, 75, 08, E8, 79, 45, 00, 00, 59, 83, A5, E0, FC, FF, FF, 00, 6A, 4C, 8D, 85, E4, FC, FF, FF, 6A, 00, 50, E8, 7A, F3, FF, FF, 8D, 85, E0, FC, FF, FF, 89, 85, D8, FC, FF, FF, 8D, 85, 30, FD, FF, FF, 83, C4, 0C, 89, 85, DC, FC, FF, FF, 89, 85, E0, FD, FF, FF, 89, 8D, DC, FD, FF, FF, 89, 95, D8, FD, FF, FF, 89, 9D, D4, FD, FF, FF, 89, B5, D0, FD, FF, FF, 89, BD, CC...
 
[+]

Code size:
68.5 KB (70,144 bytes)

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