home

{7929dd67-6f70-43ee-9cc7-c3b1ebca3d6c}gw64.sys

Steel Cut

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {7929dd67-6f70-43ee-9cc7-c3b1ebca3d6c}gw64.sys by Steel Cut has been detected as adware by 25 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{7929dd67-6f70-43ee-9cc7-c3b1ebca3d6c}Gw64”.
Publisher:
StdLib  (signed by Steel Cut)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
39481e7057ef2bbf2db3bf4852b25dc6

SHA-1:
2735869089dbded1e66b83556d7282f5b8fccaa4

SHA-256:
d62aec62733eafed720cbd51d479473155114eeafa7441f70b8407d226252a02

Scanner detections:
25 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
5/7/2024 6:23:31 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.SwiftBrowse.L
655

Agnitum Outpost
Riskware.Agent
7.1.1

AVG
AdPlugin
2016.0.3133

Baidu Antivirus
Hacktool.Win64.NetFilter
4.0.3.15421

Bitdefender
Adware.SwiftBrowse.L
1.0.20.555

Bkav FE
W64.HfsAdware
1.3.0.6379

Clam AntiVirus
Win.Adware.Swiftbrowse-497
0.98/21511

Dr.Web
Trojan.Yontoo.1734
9.0.1.05190

Emsisoft Anti-Malware
Adware.SwiftBrowse.L
8.15.04.21.07

ESET NOD32
Win64/NetFilter.A potentially unsafe application
7.0.302.0

F-Prot
W64/A-59c9c70a
v6.4.7.1.166

F-Secure
Adware.SwiftBrowse.L
11.2015-21-04_3

G Data
Adware.SwiftBrowse.CH
15.4.25

herdProtect (fuzzy)
variant of {e4a6645a-3f85-4e1f-aa41-8367978844db}w64.sys (Adware)
2015.7.22.13

K7 AntiVirus
Adware
13.202.15655

McAfee
Artemis!2EFBEE200F8A
5600.6696

MicroWorld eScan
Adware.SwiftBrowse.L
16.0.0.333

Norman
Adware.SwiftBrowse.CH
03.12.2014 13:20:04

nProtect
Adware.SwiftBrowse.L
14.05.23.01

Reason Heuristics
Threat.Yontoo.SteelCut
15.4.21.3

Sophos
BrowseSmart
4.98

Trend Micro House Call
TROJ_GEN.F47V0523
7.2.111

Trend Micro
HS_BROWSEFOX.SM
10.465.21

VIPRE Antivirus
Trojan.Win32.Generic
29520

Zillya! Antivirus
Adware.Yotoon.Win64.14
2.0.0.2145

File size:
47.6 KB (48,776 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{7929dd67-6f70-43ee-9cc7-c3b1ebca3d6c}gw64.sys

Digital Signature
Signed by:
Steel Cut

Authority:
VeriSign, Inc.

Valid from:
1/11/2015 10:00:00 AM

Valid to:
1/12/2016 9:59:59 AM

Subject:
CN=Steel Cut, O=Steel Cut, 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:
0ABB826DEFFE019B3B61D91322DE992A

File PE Metadata
Compilation timestamp:
4/20/2015 2:56:35 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:ld7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3i+aQ:TFID6EGnLA8AFJTNEVmDaQ

Entry address:
0xC064

Entry point:
48, 83, EC, 28, 4C, 8B, C2, 4C, 8B, C9, E8, 95, FF, FF, FF, 49, 8B, D0, 49, 8B, C9, 48, 83, C4, 28, E9, E2, 50, FF, FF, CC, CC, 78, C2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 54, C6, 00, 00, A0, 91, 00, 00, 28, C1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, DA, CA, 00, 00, 50, 90, 00, 00, D8, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, D2, CB, 00, 00, 00, 90, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, CB, 00, 00, 00, 00, 00, 00, A2, CB, 00, 00...
 
[+]

Entropy:
6.3924

Code size:
34.5 KB (35,328 bytes)

Driver
Display name:
{7929dd67-6f70-43ee-9cc7-c3b1ebca3d6c}Gw64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


herdProtect is a second line of defense malware removal platform powered by 68 anti-malware engines in the cloud. Since no single anti-malware program is perfect 100% of the time, herdProtect utilizes a 'herd' of multiple engines to guarantee the widest coverage and the earliest possible detection.