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maintainer.exe

Scan Tack

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application maintainer.exe by Scan Tack has been detected as adware by 22 anti-malware scanners. It runs as a separate (within the context of its own process) windows Service named “MaintainerSvc6.74.355882”. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
Scan Tack  (signed and verified)

Version:
1.0.5423.20562

MD5:
468216fe2b011ddd59aaf241a6ed97e7

SHA-1:
b6fd83b99bc7ed50d3ac06e5ea7662a770c6ffc7

SHA-256:
c0a7474e36b76c85ed38b5171466e0cde50736c59889c5f349e0a2a8b50ae3e4

Scanner detections:
22 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
5/9/2024 4:06:03 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.Y
820

AhnLab V3 Security
Adware/Win32.SwiftBrowse
2014.11.07

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.183.138

avast!
Win32:Adware-BYZ [PUP]
141025-0

AVG
Generic
2015.0.3298

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14116

Bitdefender
Adware.SwiftBrowse.Y
1.0.20.1550

Clam AntiVirus
Win.Adware.Agent-22685
0.98/21411

Dr.Web
Trojan.BPlug.281
9.0.1.05190

Emsisoft Anti-Malware
Adware.SwiftBrowse.Y
8.14.11.06.06

ESET NOD32
Win32/BrowseFox
8.10682

F-Prot
W32/A-1c37adca
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.Y
11.2014-06-11_5

G Data
Adware.SwiftBrowse
14.11.24

Kaspersky
not-a-virus:AdWare.Win32.Yotoon
15.0.0.494

MicroWorld eScan
Adware.SwiftBrowse.Y
15.0.0.930

NANO AntiVirus
Riskware.Win32.Kranet.dgiwfc
0.28.6.62995

nProtect
Adware.SwiftBrowse.Y
14.11.06.01

Reason Heuristics
PUP.Service.ScanTack.K
14.11.6.18

Vba32 AntiVirus
AdWare.Kranet
3.12.26.3

VIPRE Antivirus
Threat.4741131
34232

Zillya! Antivirus
Adware.Kranet.Win32.476
2.0.0.1976

File size:
120.8 KB (123,680 bytes)

Product version:
1.0.5423.20562

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\ProgramData\6868b380-de26-428c-8695-32ebd47bfa1b\maintainer.exe

Digital Signature
Signed by:
Scan Tack

Authority:
VeriSign, Inc.

Valid from:
1/21/2014 10:00:00 PM

Valid to:
1/22/2015 9:59:59 PM

Subject:
CN=Scan Tack, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Scan Tack, 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:
44D91A3142283CE62B23F23C84838B0D

File PE Metadata
Compilation timestamp:
11/6/2014 5:25:35 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
1536:T3eRgxyOpGX5sfnC6P2dV59IikYYf9J892bbY+mZbcQ/Wm1sWjcdgPQI0ypxCO8R:DK35/9oxfTk+Wvn6gPQI0ypxCOkXbZv

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)

Service
Display name:
MaintainerSvc6.74.355882

Type:
Win32OwnProcess

Depends on:
RPCSS


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