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maintainer.exe

ToggleMark

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application maintainer.exe by ToggleMark has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a separate (within the context of its own process) windows Service named “MaintainerSvc1.89.4043855”.
Publisher:
ToggleMark  (signed and verified)

Version:
1.0.5653.16068

MD5:
e17fba4c0c386987900be3bfa234342e

SHA-1:
53d06b768f349192bab030d9dfa64bcbd87511e7

SHA-256:
4b8aa1eb84ab4b8bdd08d45d6411ffaefeca260e59457cdceecab285a1ac4d4f

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:
12/25/2024 1:27:56 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.7.22

File size:
125.2 KB (128,240 bytes)

Product version:
1.0.5653.16068

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\ProgramData\f8743c7d-d7e5-4ef4-b7f6-c2de6b05905c\maintainer.exe

Digital Signature
Signed by:
ToggleMark

Authority:
VeriSign, Inc.

Valid from:
2/3/2015 9:00:00 PM

Valid to:
3/5/2016 8:59:59 PM

Subject:
CN=ToggleMark, O=ToggleMark, 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:
6C51D0FEC49096AAC622098F4A12E053

File PE Metadata
Compilation timestamp:
6/24/2015 12:55:42 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)

Service
Display name:
MaintainerSvc1.89.4043855

Type:
Win32OwnProcess

Depends on:
RPCSS


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