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{2e742709-7dd1-481b-a567-6510e80dbc15}gw64.sys.vir

loffinam

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file {2e742709-7dd1-481b-a567-6510e80dbc15}gw64.sys.vir by loffinam 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 loffinam)

Product:
StdLib

Version:
1.4.4.6 built by: WinDDK

MD5:
bf37f9988e4dce48911614eab1d2fd1b

SHA-1:
abb313bae2ee4d2787f5ccd3951229a147d00306

SHA-256:
dd2d243eaa1b843735b6ceda15c00739bcfec5d4424a419660c1d915aa68c3b3

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:
4/25/2024 6:39:50 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.loffinam (M)
16.2.10.12

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:
loffinam

Authority:
VeriSign, Inc.

Valid from:
11/14/2013 1:00:00 AM

Valid to:
11/15/2014 12:59:59 AM

Subject:
CN=loffinam, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=loffinam, 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:
22B7A9A338918FF4849948EF0C908FAA

File PE Metadata
Compilation timestamp:
9/22/2014 9:01:54 PM

OS version:
6.1

OS bitness:
Win64

Subsystem:
Native (none required)

Linker version:
9.0

CTPH (ssdeep):
768:ld7G2EjsnyXeOUEGG0LA8tWFZuL470h6aqxcCT2kvsVRwlZD3Lp+8:LFID6EGnLA8AFJTNEVmDLB

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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