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maintainer.bak

TopicTron

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file maintainer.bak by TopicTron has been detected as adware by 28 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:
TopicTron  (signed and verified)

Version:
1.0.5442.21052

MD5:
bed06bbdad09d5fc43a497e376a33d8e

SHA-1:
e9c4def52aef336ea83d77d080cceec37760adea

SHA-256:
57921b25eca45be2a4f959070b707836f6fb95951030d7c55dfb91b69913013e

Scanner detections:
28 / 68

Status:
Adware

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

Analysis date:
4/20/2024 3:33:16 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.SwiftBrowse.1
5841513

AhnLab V3 Security
Adware/Win32.SwiftBrowse
2014.11.22

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.188.20

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

AVG
Generic
2015.0.3279

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141126

Bitdefender
Gen:Variant.Adware.SwiftBrowse.1
1.0.20.1650

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

Comodo Security
Application.Win32.BrowseFox.B
20199

Dr.Web
Trojan.BPlug.281
9.0.1.05190

Emsisoft Anti-Malware
Gen:Variant.Adware.SwiftBrowse
9.0.0.4570

ESET NOD32
Win32/BrowseFox.V potentially unwanted application
7.0.302.0

Fortinet FortiGate
Adware/Yotoon
11/26/2014

F-Prot
W32/A-de841313
v6.4.7.1.166

F-Secure
Gen:Variant.Adware.SwiftBrowse.1
11.2014-26-11_4

G Data
Gen:Variant.Adware.SwiftBrowse
14.11.24

K7 AntiVirus
Trojan
13.185.14098

McAfee
Artemis!09970EC1DF9E
5600.6935

MicroWorld eScan
Gen:Variant.Adware.SwiftBrowse.1
15.0.0.990

NANO AntiVirus
Riskware.Win32.Kranet.dgiwfc
0.28.6.63474

nProtect
Trojan-Clicker/W32.Yotoon.123680
14.11.26.01

Panda Antivirus
Trj/CI.A
14.11.26.01

Qihoo 360 Security
HEUR/QVM10.1.Malware.Gen
1.0.0.1015

Reason Heuristics
PUP.TopicTron.N
14.11.29.17

Sophos
Generic PUA PE
4.98

Vba32 AntiVirus
AdWare.Kranet
3.12.26.3

VIPRE Antivirus
Yontoo
34996

Zillya! Antivirus
Adware.Kranet.Win32.476
2.0.0.1989

File size:
120.8 KB (123,680 bytes)

Product version:
1.0.5442.21052

Language:
English (United States)

Common path:
C:\ProgramData\0fd8dc4b-3fdb-4d7c-a6d4-ff64cff56cc4\maintainer.bak

Digital Signature
Signed by:
TopicTron

Authority:
VeriSign, Inc.

Valid from:
3/18/2014 6:00:00 PM

Valid to:
3/19/2015 5:59:59 PM

Subject:
CN=TopicTron, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=TopicTron, 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:
525F682B2D8B1E0BB71F3041A3873EB2

File PE Metadata
Compilation timestamp:
11/25/2014 12:41:51 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
1536:I3eRgxyOpGX5sfnC6P2dV59IikYYf9J892bbY+mibcQ/Wm1sWjcdWPQI0ypxCO86:4K35/9oxfTk+Zvn6WPQI0ypxCOD3bZvT

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...
 
[+]

Entropy:
6.1798

Code size:
68.5 KB (70,144 bytes)

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