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maintainer.exe

Krab Web

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

Version:
1.0.5568.22574

MD5:
59056006b1cbc2f2338f7354f581fca2

SHA-1:
c6385f644c11d63e53faebf5f581b1f047b25f94

SHA-256:
f25bc8564b8338c9eccd76f296277092377a9c921e08cfaed6ffb6f6537b5b6d

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:
11/5/2024 7:11:14 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.7.4

File size:
125.2 KB (128,240 bytes)

Product version:
1.0.5568.22574

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\ProgramData\e435d908-8e15-4e0c-ae35-3dc1cb10ee1e\maintainer.exe

Digital Signature
Signed by:
Krab Web

Authority:
VeriSign, Inc.

Valid from:
10/7/2014 2:00:00 AM

Valid to:
10/8/2015 1:59:59 AM

Subject:
CN=Krab Web, O=Krab Web, L=Santa Monica, 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:
7267FFF9DE9B65FB24D2CA9CB6A3E8F9

File PE Metadata
Compilation timestamp:
3/31/2015 9:32:34 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

Entry address:
0x9872

Entry point:
E8, 75, 62, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A1, 68, C2, 41, 00, 33, C5, 89, 45, FC, 83, 7D, 08, FF, 57, 74, 09, FF, 75, 08, E8, 59, 50, 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:
72.5 KB (74,240 bytes)

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