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tealkittybho.dll

Teal Kitty

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module tealkittybho.dll by Teal Kitty has been detected as adware by 32 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.mytealkitty.com.
Publisher:
Teal Kitty  (signed and verified)

Product:
Teal Kitty

Version:
1.0.0.7

MD5:
00237a4a5741fb49027046ee15ac7b16

SHA-1:
1d636614bc03c0b47b78a5442f730abfbaec05ea

SHA-256:
b04738b0da932a5d62efb73fcf18adaa9b85d5a592d160955b5c26200ab4fc22

Scanner detections:
32 / 68

Status:
Adware

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

Analysis date:
2/25/2025 7:31:41 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.BZ
367

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
Adware/Win32.BrowseFox
2015.05.12

Avira AntiVirus
ADWARE/BrowseFox.Gen2
7.11.216.254

AVG
BrowseFox
2017.0.2845

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.1623

Bitdefender
Adware.BrowseFox.BZ
1.0.20.170

Bkav FE
W32.HfsAdware
1.3.0.6379

Dr.Web
Trojan.Yontoo.1734
9.0.1.034

Emsisoft Anti-Malware
Adware.BrowseFox.BZ
8.16.02.03.11

ESET NOD32
Win32/BrowseFox.AE potentially unwanted (variant)
10.11613

Fortinet FortiGate
Riskware/BrowseFox
2/3/2016

F-Prot
W32/S-f64f6ec1
v6.4.7.1.166

F-Secure
Adware.BrowseFox.BZ
11.2016-03-02_4

G Data
Adware.BrowseFox.BZ
16.2.25

IKARUS anti.virus
PUA.BrowseFox
t3scan.1.8.9.0

K7 AntiVirus
Trojan
13.203.15877

Malwarebytes
PUP.Optional.TealKitty.A
v2016.02.03.11

McAfee
Artemis!374E9DF6228A
5600.6501

MicroWorld eScan
Adware.BrowseFox.BZ
17.0.0.102

NANO AntiVirus
Trojan.Win32.Yontoo.dnkubo
0.30.24.1357

Norman
Adware.BrowseFox.BZ
11.20160203

nProtect
Adware.BrowseFox.BZ
15.05.11.01

Panda Antivirus
PUP/BrowseFox
16.02.03.11

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

Reason Heuristics
PUP.Yontoo.TealKitty (M)
16.2.3.11

Rising Antivirus
PE:Adware.BrowseFox!6.1D8B
23.00.65.16201

Sophos
Generic PUA AH
4.98

Trend Micro House Call
TROJ_GEN.F0C2C00DE15
7.2.34

Trend Micro
TROJ_GEN.F0C2C00DE15
10.465.03

Vba32 AntiVirus
AdWare.MSIL.Agent
3.12.26.3

VIPRE Antivirus
Trojan.Win32.Generic
40166

File size:
262.7 KB (269,040 bytes)

Product version:
1.0.0.7

Copyright:
(c) Teal Kitty. All rights reserved.

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Common path:
C:\Program Files\teal kitty\tealkittybho.dll

Digital Signature
Signed by:
Teal Kitty

Authority:
VeriSign, Inc.

Valid from:
1/11/2015 1:00:00 AM

Valid to:
1/12/2016 12:59:59 AM

Subject:
CN=Teal Kitty, O=Teal Kitty, 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:
436637AA3101F57468AAB38795B34FD4

File PE Metadata
Compilation timestamp:
4/19/2015 9:09:53 PM

OS version:
6.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

CTPH (ssdeep):
3072:xPyP/FgELkX7V6UMU9CWRh+Y5lq3gY+Dz+ZKTXBlrwcE39qJ:xPyP/xo7VcQCWwtg+Zcxvq9E

Entry address:
0xF515

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, EA, 7E, 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, C8, 21, 03, 10, E8, 4C, 02, 00, 00, 33, C0, 40, 8B, 75, 0C, 85, F6, 75, 0C, 39, 35, 2C, 77, 03, 10, 0F, 84, E4, 00, 00, 00, 83, 65, FC, 00, 83, FE, 01, 74, 05, 83, FE, 02, 75, 35, 8B, 0D, C4, 93, 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...
 
[+]

Entropy:
6.0724

Developed / compiled with:
Microsoft Visual C++

Code size:
159 KB (162,816 bytes)

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

http://install-cdn.mytealkitty.com/bed?r=2015042008&bet=3

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