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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 24 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:
1.0.5439.6148

MD5:
401ef710a9c6a9bf8f8d1e0583b3be5f

SHA-1:
1cad4c119fd6fa9ec0324f1cbe308590a42f3da3

SHA-256:
49ef4f35e6247e0cb88118261d2d52ac42d83410ae0165f66dbcd012ce480b93

Scanner detections:
24 / 68

Status:
Adware

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

Analysis date:
5/10/2024 10:53:32 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.Y
5826990

AhnLab V3 Security
Adware/Win32.SwiftBrowse
2014.11.23

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.188.44

avast!
Win32:Adware-BYZ [PUP]
141119-1

AVG
Generic
2015.0.3283

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141122

Bitdefender
Adware.SwiftBrowse.Y
1.0.20.1630

Clam AntiVirus
Win.Adware.Agent-22685
0.98/21511

Comodo Security
Application.Win32.BrowseFox.B
20160

Dr.Web
Trojan.BPlug.281
9.0.1.05190

Emsisoft Anti-Malware
Adware.SwiftBrowse.Y
9.0.0.4570

ESET NOD32
Win32/BrowseFox.V potentially unwanted application
7.0.302.0

F-Prot
W32/A-de841313
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.Y
11.2014-22-11_7

G Data
Adware.SwiftBrowse
14.11.24

K7 AntiVirus
Trojan
13.185.14098

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

MicroWorld eScan
Adware.SwiftBrowse.Y
15.0.0.978

NANO AntiVirus
Riskware.Win32.Kranet.dgiwfc
0.28.6.63474

nProtect
Adware.SwiftBrowse.Y
14.11.21.01

Reason Heuristics
PUP.Service.ScanTack.K
14.11.22.9

Vba32 AntiVirus
AdWare.Kranet
3.12.26.3

VIPRE Antivirus
Threat.4741131
35010

Zillya! Antivirus
Adware.Kranet.Win32.476
2.0.0.1991

File size:
120.8 KB (123,680 bytes)

Product version:
1.0.5439.6148

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:
1/22/2014 1:00:00 AM

Valid to:
1/23/2015 12:59:59 AM

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:
11/22/2014 12:25:04 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
1536:x3eRgxyOpGX5sfnC6P2dV59IikYYf9J892bbY+mlbcQ/Wm1sWjcdcPQI0ypxCO8q:lK35/9oxfTk+ivn6cPQI0ypxCOb3bZv

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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