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maintainer.bak

Scan Tack

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file maintainer.bak by Scan Tack has been detected as adware by 20 anti-malware scanners. 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:
1.0.5409.33197

MD5:
861ce76d98279c4019176b8a88c3fa7e

SHA-1:
e7ee223e91b432b01d873e44456c06b65e521877

SHA-256:
4b25e2e62fa34e54ca24e0f2c0a244e363fc0ba82faf72d46060095425979224

Scanner detections:
20 / 68

Status:
Adware

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

Analysis date:
4/16/2024 9:45:21 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.Y
828

AhnLab V3 Security
Adware/Win32.SwiftBrowse
2014.10.30

avast!
Win32:PUP-gen [PUP]
2014.9-141030

AVG
Generic
2015.0.3306

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141030

Bitdefender
Adware.SwiftBrowse.Y
1.0.20.1515

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

Dr.Web
Trojan.BPlug.281
9.0.1.0303

Emsisoft Anti-Malware
Adware.SwiftBrowse.Y
8.14.10.30.07

ESET NOD32
Win32/BrowseFox
8.10640

F-Secure
Adware.SwiftBrowse.Y
11.2014-30-10_5

G Data
Adware.SwiftBrowse
14.10.24

MicroWorld eScan
Adware.SwiftBrowse.Y
15.0.0.909

NANO AntiVirus
Riskware.Win32.Kranet.dgiwfc
0.28.6.62995

nProtect
Adware.SwiftBrowse.Y
14.10.29.01

Reason Heuristics
PUP.ScanTack.N
14.10.30.7

Sophos
Generic PUA OH
4.98

Vba32 AntiVirus
AdWare.Kranet
3.12.26.3

VIPRE Antivirus
Yontoo
34348

Zillya! Antivirus
Adware.Kranet.Win32.476
2.0.0.1972

File size:
120.8 KB (123,680 bytes)

Product version:
1.0.5409.33197

Language:
English (United States)

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

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:
10/23/2014 11:26:41 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
1536:m3eRgxyOpGX5sfnC6P2dV59IikYYf9J892bbY+mNbcQ/Wm1sWjcd7PQI0ypxCO8p:6K35/9oxfTk+6vn67PQI0ypxCOsXbZv

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)

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