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maintainer.bak

TasticSurf

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file maintainer.bak by TasticSurf has been detected as adware by 24 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:
TasticSurf  (signed and verified)

Version:
1.0.5435.22294

MD5:
1950eb5702b36f9be084df5da2913d78

SHA-1:
ab6041d01ce990b5cf2456840abb53900c4dffe0

SHA-256:
b681461d54c8621218d141023b34b2185ea7b517cff9a5a845998bbc889bd19a

Scanner detections:
24 / 68

Status:
Adware

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

Analysis date:
4/19/2024 5:06:29 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.SwiftBrowse.1
805

AhnLab V3 Security
Adware/Win32.SwiftBrowse
2014.11.19

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.187.4

avast!
Win32:Adware-BYZ [PUP]
2014.9-141122

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141122

Bitdefender
Gen:Variant.Adware.SwiftBrowse.1
1.0.20.1630

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

Dr.Web
Trojan.BPlug.281
9.0.1.0326

Emsisoft Anti-Malware
Gen:Variant.Adware.SwiftBrowse
8.14.11.22.12

ESET NOD32
Win32/BrowseFox
8.10744

F-Prot
W32/A-de841313
v6.4.7.1.166

F-Secure
Gen:Variant.Adware.SwiftBrowse.1
11.2014-22-11_7

G Data
Gen:Variant.Adware.SwiftBrowse
14.11.24

IKARUS anti.virus
not-a-virus:AdWare.Yotoon
t3scan.1.8.3.0

K7 AntiVirus
Trojan
13.185.14057

Kaspersky
not-a-virus:AdWare.Win32.Yotoon
14.0.0.2910

McAfee
Artemis!1950EB5702B3
5600.6939

MicroWorld eScan
Gen:Variant.Adware.SwiftBrowse.1
15.0.0.978

NANO AntiVirus
Riskware.Win32.Kranet.dgiwfc
0.28.6.63474

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

Reason Heuristics
PUP.TasticSurf.N
14.11.22.0

Vba32 AntiVirus
AdWare.Kranet
3.12.26.3

VIPRE Antivirus
Yontoo
34906

Zillya! Antivirus
Adware.Kranet.Win32.476
2.0.0.1984

File size:
120.7 KB (123,632 bytes)

Product version:
1.0.5435.22294

Language:
English (United States)

Common path:
C:\ProgramData\application data\d2446020-ddff-402b-b064-199d2ce66b2b\maintainer.bak

Digital Signature
Signed by:
TasticSurf

Authority:
VeriSign, Inc.

Valid from:
11/3/2014 6:00:00 PM

Valid to:
1/3/2016 5:59:59 PM

Subject:
CN=TasticSurf, O=TasticSurf, 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:
6D2C37BF960997763055AC9274C52D6C

File PE Metadata
Compilation timestamp:
11/18/2014 2:23:15 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:AK35/9oxfTk+Xvn6nPQI0ypxCO5XbZvDq:AKCLPvWL5LZvDq

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:
6.1805

Code size:
68.5 KB (70,144 bytes)

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