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clearthink.purbrowse.exe

ClearThink

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application clearthink.purbrowse.exe by ClearThink has been detected as adware by 18 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.
Publisher:
ClearThink  (signed and verified)

MD5:
54d4a47935e575da7e632404e4e46aa4

SHA-1:
9e9db7543bcf7728a8361404e0a982435546d31f

SHA-256:
19e0f1d1ca882a469a44910b29f3764cf817d91b98ae977288de869eac6e5a9c

Scanner detections:
18 / 68

Status:
Adware

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

Analysis date:
4/25/2024 12:58:00 PM UTC  (today)

Scan engine
Detection
Engine version

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.BrowseFox
2014.09.29

AVG
Generic
2015.0.3343

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.14922

Clam AntiVirus
Win.Adware.Swiftbrowse-269
0.98/19447

ESET NOD32
Win32/BrowseFox.J potentially unwanted application
8.7.0.302.0

herdProtect (fuzzy)
variant of sunrisebrowse.purbrowse.exe (Adware)
2014.12.4.15

IKARUS anti.virus
PUA.BrowseFox
t3scan.1.7.8.0

Kaspersky
not-a-virus:HEUR:AdWare.Win32.Kranet
14.0.0.3212

McAfee
BrowseFox
5600.6999

NANO AntiVirus
Riskware.Win32.Kranet.dfqewc
0.28.2.62286

Qihoo 360 Security
Win32/Virus.Adware.639
1.0.0.1015

Reason Heuristics
PUP.ClearThink.T
14.9.22.10

Sophos
Browse Fox
4.98

SUPERAntiSpyware
PUP.BrowseFox/Variant
10198

Vba32 AntiVirus
AdWare.Kranet
3.12.26.3

VIPRE Antivirus
Threat.4150696
32938

Zillya! Antivirus
Adware.Agent.Win32.12828
2.0.0.1936

File size:
287.2 KB (294,128 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\Program Files\clearthink\bin\clearthink.purbrowse.exe

Digital Signature
Signed by:
ClearThink

Authority:
VeriSign, Inc.

Valid from:
8/5/2014 2:00:00 AM

Valid to:
8/6/2015 1:59:59 AM

Subject:
CN=ClearThink, O=ClearThink, 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:
1200063ED04B1DA36F7FE204B3DD8617

File PE Metadata
Compilation timestamp:
9/9/2014 11:54:02 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows Console

Linker version:
10.0

CTPH (ssdeep):
6144:SUoj8th3npV3GJzfLioFSPdItvwTBwqnZgE4:cj8thnpV2JzfLioFSPdItvwTab

Entry address:
0x20DEE

Entry point:
E8, 45, 84, 00, 00, E9, 95, FE, FF, FF, 8B, FF, 55, 8B, EC, 8B, 45, 08, 33, C9, 3B, 04, CD, 88, 34, 44, 00, 74, 13, 41, 83, F9, 2D, 72, F1, 8D, 48, ED, 83, F9, 11, 77, 0E, 6A, 0D, 58, 5D, C3, 8B, 04, CD, 8C, 34, 44, 00, 5D, C3, 05, 44, FF, FF, FF, 6A, 0E, 59, 3B, C8, 1B, C0, 23, C1, 83, C0, 08, 5D, C3, E8, F4, 51, 00, 00, 85, C0, 75, 06, B8, F0, 35, 44, 00, C3, 83, C0, 08, C3, E8, E1, 51, 00, 00, 85, C0, 75, 06, B8, F4, 35, 44, 00, C3, 83, C0, 0C, C3, 8B, FF, 55, 8B, EC, 56, E8, E2, FF, FF, FF, 8B, 4D, 08...
 
[+]

Entropy:
6.6028

Code size:
209 KB (214,016 bytes)

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