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yaygames.exe

YayZap Installer

YayZap

The application yaygames.exe by YayZap has been detected as a potentially unwanted program 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. The file has been seen being downloaded from maby.yayzap.com.
Publisher:
YayZap  (signed and verified)

Product:
YayZap Installer

Version:
4.0.4608.0

MD5:
c4c2a5e1455bb750f12fc1d959989e98

SHA-1:
b71f2a022ee19ad1c8b39b3eb87e754e4de2c226

SHA-256:
b289bc9042db505317ba55460c26a8a78ddb84b6e27166a5027ec3cca07cb9e9

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
7/4/2025 5:29:13 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.YayZap.Installer (M)
16.6.19.12

File size:
284.9 KB (291,712 bytes)

Product version:
4.0.4608.0

Copyright:
Copyright (C) 2015

File type:
Executable application (Win32 EXE)

Installer:
NSIS (Nullsoft Scriptable Install System)

Language:
English (United States)

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

Digital Signature
Signed by:
YayZap

Authority:
thawte, Inc.

Valid from:
7/7/2015 5:00:00 PM

Valid to:
7/7/2016 4:59:59 PM

Subject:
CN=YayZap, O=YayZap, L=Laguna Hills, S=California, C=US

Issuer:
CN=thawte SHA256 Code Signing CA, O="thawte, Inc.", C=US

Serial number:
0EB407FC8BBFEF51EDA704A37F4AF521

File PE Metadata
Compilation timestamp:
12/5/2009 2:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
6144:BspkcdQeTI0h6nb91KZ9TQ+g0Tx8iNId6hjdgh8N94u+F3kSQ:jctI991uD/x87vh8NGuQNQ

Entry address:
0x323C

Entry point:
81, EC, 80, 01, 00, 00, 53, 55, 56, 33, DB, 57, 89, 5C, 24, 18, C7, 44, 24, 10, 30, 91, 40, 00, 33, F6, C6, 44, 24, 14, 20, FF, 15, 30, 70, 40, 00, 68, 01, 80, 00, 00, FF, 15, B4, 70, 40, 00, 53, FF, 15, 7C, 72, 40, 00, 6A, 08, A3, 58, 3F, 42, 00, E8, 09, 2C, 00, 00, A3, A4, 3E, 42, 00, 53, 8D, 44, 24, 34, 68, 60, 01, 00, 00, 50, 53, 68, 58, F4, 41, 00, FF, 15, 58, 71, 40, 00, 68, B8, 91, 40, 00, 68, A0, 36, 42, 00, E8, BC, 28, 00, 00, FF, 15, B0, 70, 40, 00, BF, 00, 90, 42, 00, 50, 57, E8, AA, 28, 00, 00...
 
[+]

Entropy:
7.9220

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

The file yaygames.exe has been seen being distributed by the following URL.

http://maby.yayzap.com/yay/getsetup.php?sp=OTkzMjE5NjA3ONuhRSoNtLPDZtm2 p KobUN/zlPcBFVQTL/.../7PxBG62VdGkEI6P1XnQC9TMP7JEsMa9iAQ==

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