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XTLS.dll

XVRNT

fassurun

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module XTLS.dll, “TODO: <File description>” by fassurun has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
TODO: <Company name>  (signed by fassurun)

Product:
XVRNT

Description:
TODO: <File description>

Version:
2.0.0.5

MD5:
e045a6075f689bbda9b6dedf27ce3e9a

SHA-1:
0dc528cf37a0687b25e0281d9157e3b545eeffad

SHA-256:
32de778a4e4c0b50a7f36c11a32694d0d1dccbcc4b35d195f876744b13f98435

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:
4/26/2024 10:11:03 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo.fassurun (M)
16.2.4.9

File size:
285.8 KB (292,632 bytes)

Product version:
2.0.0.5

Copyright:
TODO: (c) <Company name>. All rights reserved.

Original file name:
XTLS.dll

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Common path:
C:\Program Files\fassurun\bin\xtls.dll

Digital Signature
Signed by:
fassurun

Authority:
VeriSign, Inc.

Valid from:
8/20/2013 8:00:00 PM

Valid to:
8/20/2015 7:59:59 PM

Subject:
CN=fassurun, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=fassurun, 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:
6EA3A2D62F7379560AF4974E60282338

File PE Metadata
Compilation timestamp:
3/20/2014 4:36:19 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:oiO/Hk7PRDYPC/Vsy6/KC2X3qbK7aeAzjgPqAiUf:nmHk7ZsC/CyaKC2X3qbK7aeAIqef

Entry address:
0x21227

Entry point:
8B, FF, 55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, CB, 84, 00, 00, FF, 75, 08, 8B, 4D, 10, 8B, 55, 0C, E8, EC, FE, FF, FF, 59, 5D, C2, 0C, 00, B8, 47, A2, 02, 10, A3, 88, 23, 04, 10, C7, 05, 8C, 23, 04, 10, 3D, 99, 02, 10, C7, 05, 90, 23, 04, 10, F1, 98, 02, 10, C7, 05, 94, 23, 04, 10, 2A, 99, 02, 10, C7, 05, 98, 23, 04, 10, 93, 98, 02, 10, A3, 9C, 23, 04, 10, C7, 05, A0, 23, 04, 10, BF, A1, 02, 10, C7, 05, A4, 23, 04, 10, AF, 98, 02, 10, C7, 05, A8, 23, 04, 10, 11, 98, 02, 10, C7, 05, AC, 23, 04, 10, 9D, 97...
 
[+]

Entropy:
6.5104

Code size:
201.5 KB (206,336 bytes)

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