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{f8290414-c8ea-4713-a233-52a7037a2967}gw.sys

Zippy Zarp

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {f8290414-c8ea-4713-a233-52a7037a2967}gw.sys by Zippy Zarp has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It runs as a Windows kernel mode device driver named “{f8290414-c8ea-4713-a233-52a7037a2967}Gw”.
Publisher:
StdLib  (signed by Zippy Zarp)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
a1152ba792d7c60122ee2153cd55d2b6

SHA-1:
3084967fa9d907f2600394bf2d7686ff4a45f444

SHA-256:
8519e0e5c66d80dfd13f48585fc7eeb97fa0d54c0a6dce7c03df8cb8c8c1c76c

Scanner detections:
1 / 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:
4/18/2024 7:58:06 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.ZippyZarp (M)
16.1.21.10

File size:
51.7 KB (52,928 bytes)

Product version:
1.4.3.1

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

File type:
Driver (Win32 SYS)

Language:
English (United States)

Common path:
C:\Windows\System32\drivers\{f8290414-c8ea-4713-a233-52a7037a2967}gw.sys

Digital Signature
Signed by:
Zippy Zarp

Authority:
VeriSign, Inc.

Valid from:
11/27/2013 7:00:00 AM

Valid to:
11/28/2014 6:59:59 AM

Subject:
CN=Zippy Zarp, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Zippy Zarp, 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:
1ADD2A8F1E9EFBECF78EBF3B3C82B38E

File PE Metadata
Compilation timestamp:
1/31/2014 7:45:28 AM

OS version:
6.1

OS bitness:
Win32

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:HIsHpnKHCBSqUPJHKQpkJxpKwT2bcWiJmOtX3g2rp3lnLb46sj:osHRKHLJqQpkYwTsiTtXxtX46sj

Entry address:
0xC03E

Entry point:
8B, FF, 55, 8B, EC, E8, BD, FF, FF, FF, 5D, E9, 62, 50, FF, FF, CC, CC, 74, C1, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, BC, C4, 00, 00, C0, A0, 00, 00, B4, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 12, C5, 00, 00, 00, A0, 00, 00, EC, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, AE, C8, 00, 00, 38, A0, 00, 00, C4, C0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, A6, C9, 00, 00, 10, A0, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, EA, C4, 00, 00, FE, C4, 00, 00, D6, C4...
 
[+]

Entropy:
6.3559

Code size:
37 KB (37,888 bytes)

Driver
Display name:
{f8290414-c8ea-4713-a233-52a7037a2967}Gw

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI


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