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{587cb346-a3d8-4884-b39b-f0ed918b6f96}gw64.sys

TowerTilt

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {587cb346-a3d8-4884-b39b-f0ed918b6f96}gw64.sys by TowerTilt has been detected as adware by 5 anti-malware scanners. It runs as a Windows 64-bit kernel mode device driver named “{587cb346-a3d8-4884-b39b-f0ed918b6f96}Gw64”.
Publisher:
StdLib  (signed by TowerTilt)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
105b38d6d6b0205619aac17155b5103b

SHA-1:
8b915b404fba3583860296c58cff56eda17dcd71

SHA-256:
d4572bbc4d355e62c0e863efa182364928277592ec1dad25d34f33ddea8a5fc4

Scanner detections:
5 / 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:
5/10/2024 8:03:15 AM UTC  (today)

Scan engine
Detection
Engine version

AVG
Towit
2015.0.3456

IKARUS anti.virus
AdWare.SpadeCast
t3scan.1.6.1.0

Reason Heuristics
PUP.TowerTilt.n
14.6.1.15

Sophos
BrowseSmart
4.98

VIPRE Antivirus
Trojan.Win32.Generic
29590

File size:
59.7 KB (61,120 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win64 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{587cb346-a3d8-4884-b39b-f0ed918b6f96}gw64.sys

Digital Signature
Signed by:
TowerTilt

Authority:
VeriSign, Inc.

Valid from:
2/4/2014 5:30:00 AM

Valid to:
2/5/2015 5:29:59 AM

Subject:
CN=TowerTilt, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=TowerTilt, 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:
0DC21B60DDFB723E55B2F05376083F29

File PE Metadata
Compilation timestamp:
1/31/2014 6:15:30 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:4ot2dxF9O8ZF33iqiIy938bWp9XcfBvJkowidITH:49JRicy938ip9ea1jL

Entry address:
0xF064

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, 2E, 20, FF, FF, CC, CC, 38, F2, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 1C, F6, 00, 00, 60, C1, 00, 00, 28, F1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BE, F9, 00, 00, 50, C0, 00, 00, D8, F0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, B6, FA, 00, 00, 00, C0, 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, 9A, FA, 00, 00, 00, 00, 00, 00, 86, FA, 00, 00...
 
[+]

Entropy:
5.9635

Code size:
46.5 KB (47,616 bytes)

Driver
Display name:
{587cb346-a3d8-4884-b39b-f0ed918b6f96}Gw64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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