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{d4fb2107-4e6c-4a65-b0f5-921b8c8a7cfb}w64.sys.vir

Jotzey

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {d4fb2107-4e6c-4a65-b0f5-921b8c8a7cfb}w64.sys.vir by Jotzey has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
StdLib  (signed by Jotzey)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
42f9657ae2b78070f179a88d05fc79ea

SHA-1:
100951b4b9db20d8daae70e46e6a1564a1ff65a8

SHA-256:
ceb70368ec4a11381655804c8a7475e590efd9b876b027bdabfe38f0e4fd12c4

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:
5/10/2024 5:02:08 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.Jotzey (M)
16.2.13.22

File size:
47.7 KB (48,824 bytes)

Product version:
1.4.4.6

Copyright:
Copyright © 2013 StdLib

Original file name:
StdLib.sys

Language:
English (United States)

Digital Signature
Signed by:
Jotzey

Authority:
VeriSign, Inc.

Valid from:
1/12/2014 1:00:00 AM

Valid to:
1/13/2015 12:59:59 AM

Subject:
CN=Jotzey, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Jotzey, 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:
4C7B335D1F24250859B4B5C0085A062C

File PE Metadata
Compilation timestamp:
11/30/2014 8:38:59 AM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:lT7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3fLf:hFID6EGnLA8AFJTNEVmDDf

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...
 
[+]

Code size:
34.5 KB (35,328 bytes)

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