{6eaeb8af-e4d9-4df5-b9d7-815f2928cdf7}gt64.sys

Krab Web

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {6eaeb8af-e4d9-4df5-b9d7-815f2928cdf7}gt64.sys by Krab Web 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 64-bit kernel mode device driver named “{6eaeb8af-e4d9-4df5-b9d7-815f2928cdf7}Gt64”.
Publisher:
StdLib  (signed by Krab Web)

Product:
StdLib

Version:
1.4.3.1 built by: WinDDK

MD5:
6dccf3dbda9388a128d01693d8199aa8

SHA-1:
673f1b5297cd5c122a515f6b9b87674f98071d9a

SHA-256:
e8de59cde920cd3c0d994d78b7b25c420c83fe7b09c1f9b9723f95d5695a823b

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:
11/27/2024 1:05:16 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.2.6.9

File size:
58.6 KB (59,992 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\{6eaeb8af-e4d9-4df5-b9d7-815f2928cdf7}gt64.sys

Digital Signature
Signed by:

Authority:
DigiCert Inc

Valid from:
6/8/2014 8:00:00 PM

Valid to:
6/17/2015 8:00:00 AM

Subject:
CN=Krab Web, O=Krab Web, L=Santa Monica, S=California, C=US

Issuer:
CN=DigiCert Assured ID Code Signing CA-1, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
0572744C4944FF55FB05A9A82A78D271

File PE Metadata
Compilation timestamp:
8/6/2014 7:52:34 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

Entry address:
0x10064

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, 8E, B3, FF, FF, CC, CC, D0, 00, 01, 00, 00, 00, 00, 00, 00, 00, 00, 00, 40, 05, 01, 00, 10, C0, 00, 00, C0, 00, 01, 00, 00, 00, 00, 00, 00, 00, 00, 00, 62, 05, 01, 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, 4E, 05, 01, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 3C, 02, 01, 00, 00, 00, 00, 00, 50, 02, 01, 00, 00, 00, 00, 00, 6E, 02, 01, 00...
 
[+]

Entropy:
6.3683

Code size:
45 KB (46,080 bytes)

Driver
Display name:
{6eaeb8af-e4d9-4df5-b9d7-815f2928cdf7}Gt64

Type:
Kernel device driver (KernelDriver)

Group:
PNP_TDI