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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 23 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:
1.0.5418.32145

MD5:
c4155dd71919de0e0b2245492fa933bd

SHA-1:
6cc352d4f6dc17aa474a010751520a20aafecb31

SHA-256:
2ab4561bd528c7053e92477ea31ffa0b3271cbdfce36202fdf610c48265ee377

Scanner detections:
23 / 68

Status:
Adware

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

Analysis date:
4/23/2024 4:26:41 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.Y
820

AhnLab V3 Security
Adware/Win32.SwiftBrowse
2014.11.08

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.183.170

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

AVG
Generic
2015.0.3298

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14117

Bitdefender
Adware.SwiftBrowse.Y
1.0.20.1555

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

Dr.Web
Trojan.BPlug.281
9.0.1.05190

Emsisoft Anti-Malware
Adware.SwiftBrowse.Y
14.11.07

ESET NOD32
Win32/BrowseFox
8.10686

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

F-Secure
Adware.SwiftBrowse.Y
11.2014-07-11_6

G Data
Adware.SwiftBrowse
14.11.24

Kaspersky
not-a-virus:AdWare.Win32.Yotoon
15.0.0.543

MicroWorld eScan
Adware.SwiftBrowse.Y
15.0.0.933

NANO AntiVirus
Riskware.Win32.Kranet.dgiwfc
0.28.6.62995

nProtect
Adware.SwiftBrowse.Y
14.11.06.01

Reason Heuristics
PUP.Service.ScanTack.K
14.11.7.9

Sophos
Generic PUA GM
4.98

Vba32 AntiVirus
AdWare.Kranet
3.12.26.3

VIPRE Antivirus
Threat.4741131
34232

Zillya! Antivirus
Adware.Kranet.Win32.476
2.0.0.1977

File size:
120.8 KB (123,680 bytes)

Product version:
1.0.5418.32145

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:
11/1/2014 10:51:37 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:EK35/9oxfTk+uvn6xPQI0ypxCOsXbZvE:EKCLPmALsLZvE

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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