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brasssearch.dll

Brass Search

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module brasssearch.dll by Brass Search has been detected as adware by 11 anti-malware scanners. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages. The file has been seen being downloaded from install-cdn.brass-search.net.
Publisher:
Brass Search  (signed and verified)

Product:
Brass Search

Version:
1.0.0.3

MD5:
a140d52b855555b8b8d05ed828a303f6

SHA-1:
73fb9308a2395c7dd153b47b1c458adab242e2ce

SHA-256:
00c02d2e5bc05ecea04ead0ce812a177ac5e212bfa4fbbc7991e576e0746c3cc

Scanner detections:
11 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
11/15/2024 11:37:37 PM UTC  (a few moments ago)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

Avira AntiVirus
ADWARE/BrowseFox.Gen2
7.11.179.234

AVG
BrowseFox.F
2017.0.2860

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.16119

Comodo Security
Application.Win32.BrowseFox.JM
19854

Dr.Web
Trojan.BPlug.167
9.0.1.019

ESET NOD32
Win32/BrowseFox (variant)
10.10592

Malwarebytes
PUP.Optional.BrassSearch.A
v2016.01.19.11

NANO AntiVirus
Trojan.Win32.BPlug.dfohwl
0.28.2.62841

Qihoo 360 Security
HEUR/QVM30.1.Malware.Gen
1.0.0.1015

Reason Heuristics
PUP.Yontoo.BrassSearch (M)
16.1.19.11

File size:
244.8 KB (250,664 bytes)

Product version:
1.0.0.3

Copyright:
(c) Brass Search. All rights reserved.

Original file name:
Brass SearchIEClient.dll

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\inetcache\ie\{random}\brasssearch.dll

Digital Signature
Signed by:
Brass Search

Authority:
VeriSign, Inc.

Valid from:
3/13/2014 9:00:00 PM

Valid to:
3/14/2015 8:59:59 PM

Subject:
CN=Brass Search, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Brass Search, 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:
79A7A4116AA48D85E401C00C69AD38D7

File PE Metadata
Compilation timestamp:
11/2/2014 8:56:12 AM

OS version:
6.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:/rCoqi7Zcx83Z2qJC0SzN+3au4id15+EaxIaIsQTmMLR:/qi7ZcG3BCRecxILSMLR

Entry address:
0x12854

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, 41, 8D, 00, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, 07, 00, 00, 00, 83, C4, 0C, 5D, C2, 0C, 00, 6A, 0C, 68, 90, 30, 03, 10, E8, BD, 01, 00, 00, 33, C0, 40, 8B, 75, 0C, 85, F6, 75, 0C, 39, 35, 44, 78, 03, 10, 0F, 84, E4, 00, 00, 00, 83, 65, FC, 00, 83, FE, 01, 74, 05, 83, FE, 02, 75, 35, 8B, 0D, 1C, A5, 02, 10, 85, C9, 74, 0C, FF, 75, 10, 56, FF, 75, 08, FF, D1, 89, 45, E4, 85, C0, 0F, 84, B1, 00, 00, 00, FF, 75, 10, 56, FF, 75, 08, E8, 11, FE, FF, FF, 89, 45, E4...
 
[+]

Developed / compiled with:
Microsoft Visual C++

Code size:
159 KB (162,816 bytes)

The file brasssearch.dll has been seen being distributed by the following URL.

http://install-cdn.brass-search.net/bed?bet=3

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