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portalmoreuninstall.exe

PortalMore

This is the installer/setup program for a Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The application portalmoreuninstall.exe by PortalMore has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. The program is a setup application that uses the NSIS (Nullsoft Scriptable Install System) installer.
Publisher:
PortalMore  (signed and verified)

MD5:
cd6cff108b7d351ef9404027100b27bb

SHA-1:
d60d660d9b398ee73e25a5f63500414dc7b4e321

SHA-256:
714d056f6ed12a31bf2f9b8fb1bdf00d44277e2ae6e437c9f0ffd5d7b3d0dab2

Scanner detections:
1 / 68

Status:
Adware

Explanation:
This is the installer/uninstaller for the Yontoo branded (portalmore) adware program. The main protgram is desigend to deliver advertisements to the user's web browser through injection.

Analysis date:
5/17/2024 9:18:50 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
Adware.Yontoo (M)
17.3.9.23

File size:
254.5 KB (260,656 bytes)

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Common path:
C:\Program Files\portalmore\portalmoreuninstall.exe

Digital Signature
Signed by:
PortalMore

Authority:
VeriSign, Inc.

Valid from:
10/7/2014 8:00:00 PM

Valid to:
10/8/2015 7:59:59 PM

Subject:
CN=PortalMore, O=PortalMore, 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:
14DCC59945E4B46B41587E1F633D56C1

File PE Metadata
Compilation timestamp:
12/5/2009 6:52:01 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

Entry address:
0x30CB

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 60, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B0, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 38, 6F, 44, 00, E8, F1, 2B, 00, 00, A3, 84, 6E, 44, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 30, 9C, 42, 00, FF, 15, 58, 71, 40, 00, 68, 54, 91, 40, 00, 68, 80, 2E, 44, 00, E8, A4, 28, 00, 00, FF, 15, AC, 70, 40, 00, BF, 00, F0, 46, 00, 50, 57, E8, 92, 28, 00, 00...
 
[+]

Entropy:
7.8726

Packer / compiler:
Nullsoft install system v2.x

Code size:
22.5 KB (23,040 bytes)

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