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krabweb.boashelper.exe

Krab Web

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application krabweb.boashelper.exe by Krab Web has been detected as adware by 20 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:
Krab Web  (signed and verified)

MD5:
b53d8d6ef684b4704c9c78fa0ca9b572

SHA-1:
f90651e33a138d391f829dfe12dff5e3ebcb4ad4

SHA-256:
6c83021e9a9c0ee052a647b9f8c6187d0d3580bfbe4a0d50c566c4c91625c7ac

Scanner detections:
20 / 68

Status:
Adware

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

Analysis date:
4/24/2024 7:30:43 AM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Gen:Variant.Adware.Graftor.159134
799

Agnitum Outpost
Riskware.Agent
7.1.1

AhnLab V3 Security
PUP/Win32.BrowseFox
2014.11.28

Avira AntiVirus
ADWARE/BrowseFox.Gen7
7.11.189.70

AVG
Generic
2015.0.3277

Baidu Antivirus
Adware.Win32.BrowseFox
4.0.3.141128

Bitdefender
Gen:Variant.Adware.Graftor.159134
1.0.20.1660

Clam AntiVirus
Win.Adware.Graftor-495
0.98/21511

Comodo Security
Application.Win32.AltBrowse.ISPI
20215

Emsisoft Anti-Malware
Gen:Variant.Adware.Graftor.159134
9.0.0.4570

ESET NOD32
Win32/BrowseFox.R potentially unwanted application
7.0.302.0

F-Secure
Gen:Variant.Adware.Graftor.159134
11.2014-28-11_6

G Data
Gen:Variant.Adware.Graftor.159134
14.11.24

IKARUS anti.virus
PUA.BrowseFox
t3scan.1.8.3.0

MicroWorld eScan
Gen:Variant.Adware.Graftor.159134
15.0.0.996

NANO AntiVirus
Riskware.Win32.BrowseFox.dguede
0.28.6.63726

Qihoo 360 Security
Win32/Virus.Adware.708
1.0.0.1015

Reason Heuristics
PUP.KrabWeb.R
14.11.28.3

VIPRE Antivirus
Threat.4150696
35088

Zillya! Antivirus
Trojan.Black.Win32.19940
2.0.0.1995

File size:
1.6 MB (1,649,904 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\Program Files\krab web\bin\krabweb.boashelper.exe

Digital Signature
Signed by:
Krab Web

Authority:
VeriSign, Inc.

Valid from:
10/7/2014 10:00:00 AM

Valid to:
10/8/2015 9:59:59 AM

Subject:
CN=Krab Web, O=Krab Web, 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:
7267FFF9DE9B65FB24D2CA9CB6A3E8F9

File PE Metadata
Compilation timestamp:
11/27/2014 10:09:05 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
49152:dFw6oFimTLKM5nSWYwICyc64UL3WWAsL2SmL+qXDxpnfancb8n:ei6KMAWYwFyc64UL3WXsqXXFpnfa+e

Entry address:
0xF6B5B

Entry point:
E8, CC, 84, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 53, 8B, 5D, 08, 83, FB, E0, 77, 6F, 56, 57, 83, 3D, 94, E1, 56, 00, 00, 75, 18, E8, F8, 77, 00, 00, 6A, 1E, E8, 42, 76, 00, 00, 68, FF, 00, 00, 00, E8, 81, 28, 00, 00, 59, 59, 85, DB, 74, 04, 8B, C3, EB, 03, 33, C0, 40, 50, 6A, 00, FF, 35, 94, E1, 56, 00, FF, 15, 2C, F2, 51, 00, 8B, F8, 85, FF, 75, 26, 6A, 0C, 5E, 39, 05, E0, E9, 56, 00, 74, 0D, 53, E8, 0F, 85, 00, 00, 59, 85, C0, 75, A9, EB, 07, E8, 47, 0C, 00, 00, 89, 30, E8, 40, 0C, 00, 00, 89...
 
[+]

Entropy:
6.4157

Code size:
1.1 MB (1,171,456 bytes)

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