{5355f4ba-7398-4492-807f-59689f03bca3}w.sys

gate snapper

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {5355f4ba-7398-4492-807f-59689f03bca3}w.sys by gate snapper has been detected as adware by 28 anti-malware scanners. It runs as a Windows kernel mode device driver named “{5355f4ba-7398-4492-807f-59689f03bca3}w”. 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:
StdLib  (signed by gate snapper)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
9e7b76decf5cb64ac4389c6fdc625987

SHA-1:
e1525b51e661f4fec1ac4dbd824239e098a78640

SHA-256:
bdd6d0e8ae0d58397c77c3a408b33d770147a3dd8498564b7f8cdc536df930f0

Scanner detections:
28 / 68

Status:
Adware

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

Analysis date:
4/25/2024 12:01:49 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.V
435

Agnitum Outpost
PUA.BrowseFox
7.1.1

Avira AntiVirus
Adware/BrowseFox.A.1227
7.11.216.120

AVG
Generic
2016.0.2913

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.151127

Bitdefender
Adware.BrowseFox.V
1.0.20.1655

Bkav FE
W32.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Adware.Netfilter-134
0.98/21511

Comodo Security
TrojWare.Win32.AltBrowse.IZZV
21388

Dr.Web
Tool.NetFilter.313
9.0.1.0331

Emsisoft Anti-Malware
Adware.BrowseFox.V
8.15.11.27.04

ESET NOD32
Win32/NetFilter.A potentially unsafe (variant)
9.11311

Fortinet FortiGate
Adware/Yotoon
11/27/2015

F-Prot
W32/A-76f53fd6
v6.4.7.1.166

F-Secure
Adware.BrowseFox.V
11.2015-27-11_6

G Data
Adware.BrowseFox
15.11.25

K7 AntiVirus
Unwanted-Program
13.200.15249

Kaspersky
not-a-virus:AdWare.Win32.Yotoon
14.0.0.1059

McAfee
Artemis!9E7B76DECF5C
5600.6569

MicroWorld eScan
Adware.BrowseFox.V
16.0.0.993

nProtect
Adware.BrowseFox.V
15.03.12.01

Panda Antivirus
Trj/CI.A
15.11.27.04

Qihoo 360 Security
Win32/Virus.Adware.618
1.0.0.1015

Reason Heuristics
PUP.Yontoo.gatesnapper (M)
15.11.27.4

Sophos
Generic PUA OB
4.98

Vba32 AntiVirus
AdWare.Zaitu
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
38372

Zillya! Antivirus
Backdoor.CPEX.Win32.29350
2.0.0.2097

File size:
42.1 KB (43,160 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{5355f4ba-7398-4492-807f-59689f03bca3}w.sys

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
11/19/2014 10:00:00 PM

Valid to:
11/20/2015 9:59:59 PM

Subject:
CN=gate snapper, O=gate snapper, 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:
133A7A0373BA5F8F11B450D044B92146

File PE Metadata
Compilation timestamp:
2/5/2015 6:02:29 PM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:GN0457WBZwpHs63E+X7BIrTsCEziDH+JgrVJddM/5k:qhUcpH/0+LCf7EziDHhd

Entry address:
0xA03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 20, 70, FF, FF, CC, CC, 94, A1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, CE, A4, 00, 00, E0, 80, 00, 00, B4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 24, A5, 00, 00, 00, 80, 00, 00, EC, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A4, A9, 00, 00, 38, 80, 00, 00, C4, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 9C, AA, 00, 00, 10, 80, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, FC, A4, 00, 00, 10, A5, 00, 00, E8, A4...
 
[+]

Code size:
28 KB (28,672 bytes)

Driver
Display name:
{5355f4ba-7398-4492-807f-59689f03bca3}w

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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