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maintainer.bak

secretsauce

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file maintainer.bak by secretsauce has been detected as adware by 21 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:
secretsauce  (signed and verified)

Version:
1.0.5562.20120

MD5:
f31b1305dde9fcc1996a47e1c188b03b

SHA-1:
070a681917a264e27fe6f561afe8395f86cf3272

SHA-256:
0f07fe01805e725d9f54f01050a32ac625cea96ec4110b9582316b2da2f64f4c

Scanner detections:
21 / 68

Status:
Adware

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

Analysis date:
4/26/2024 7:20:36 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.BB
6373653

AhnLab V3 Security
PUP/Win32.BrowseFox
2015.03.27

avast!
Win32:BrowseFox-HQ [PUP]
150320-0

AVG
Adware AdPlugin.CWT
2014.0.4311

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.15327

Bitdefender
Adware.BrowseFox.BB
1.0.20.430

Bkav FE
W32.HfsAdware
1.3.0.6379

Dr.Web
Trojan.Yontoo.1734
9.0.1.05190

Emsisoft Anti-Malware
Adware.BrowseFox.BB
9.0.0.4799

ESET NOD32
Win32/BrowseFox.V potentially unwanted application
7.0.302.0

F-Prot
W32/S-11fc74d1
v6.4.7.1.166

F-Secure
Adware.BrowseFox.BB
5.13.68

G Data
Adware.BrowseFox.BB
15.3.25

herdProtect (fuzzy)
variant of maintainer.exe (Adware)
2015.7.2.1

K7 AntiVirus
Unwanted-Program
13.202.15399

MicroWorld eScan
Adware.BrowseFox.BB
16.0.0.258

NANO AntiVirus
Trojan.Win32.Yontoo.dpmcsm
0.30.8.659

Norman
Gen:Variant.Adware.Graftor.163020
03.12.2014 13:20:04

nProtect
Adware.BrowseFox.BB
15.03.27.01

Reason Heuristics
PUP.Yontoo
15.3.27.7

VIPRE Antivirus
Threat.4741131
38552

File size:
125.2 KB (128,240 bytes)

Product version:
1.0.5562.20120

Language:
English (United States)

Common path:
C:\ProgramData\7ed2981b-e8b2-4b44-8eca-c85b04d13119\maintainer.bak

Digital Signature
Signed by:
secretsauce

Authority:
VeriSign, Inc.

Valid from:
9/30/2014 1:00:00 AM

Valid to:
10/30/2015 11:59:59 PM

Subject:
CN=secretsauce, O=secretsauce, 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:
58483913E0DBCAAB64CC87477F31A66E

File PE Metadata
Compilation timestamp:
3/25/2015 6:10:45 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:HD1Ll2ZpujSiZF4gPsym2UG0IHhxDOj9Vf:HBVDFHSKuj/f

Entry address:
0x9872

Entry point:
E8, 75, 62, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A1, 68, C2, 41, 00, 33, C5, 89, 45, FC, 83, 7D, 08, FF, 57, 74, 09, FF, 75, 08, E8, 59, 50, 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:
72.5 KB (74,240 bytes)

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