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mcsetup.exe

Spigot, Inc.

This component is part of the Spigot browser add-on, a web browser addition that is designed to modify the core search provider in order to redirect search queries through partner portals. The application mcsetup.exe by Spigot 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 Spigot Setup installer.
Publisher:
Spigot, Inc.  (signed and verified)

MD5:
f1138ebbeb69ff6ea771b918ffb0372e

SHA-1:
0c5435495dac6928a12af428d9912c05739de85b

SHA-256:
90bda7051f8bb45d79894f3b2eb8f594c02ec520d9d810bd646b0a84ef63c837

Scanner detections:
1 / 68

Status:
Adware

Note:
Our current pool of anti-malware engines have not currently detected this file, however based on our own detection heuristics we feel that this file is unwanted.

Analysis date:
6/29/2025 5:40:27 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Spigot (M)
17.3.7.3

File size:
225.7 KB (231,072 bytes)

File type:
Executable application (Win32 EXE)

Installer:
Spigot Setup

Language:
Language Neutral

Common path:
C:\users\{user}\downloads\mcsetup.exe

Digital Signature
Signed by:
Spigot, Inc.

Authority:
Starfield Technologies, Inc.

Valid from:
11/25/2014 10:12:04 AM

Valid to:
11/15/2015 12:47:06 AM

Subject:
CN="Spigot, Inc.", O="Spigot, Inc.", L=Incline Village, S=Nevada, C=US

Issuer:
CN=Starfield Secure Certificate Authority - G2, OU=http://certs.starfieldtech.com/repository/, O="Starfield Technologies, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
69F457F75D81

File PE Metadata
Compilation timestamp:
12/5/2009 11:50:46 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

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...
 
[+]

Packer / compiler:
Nullsoft install system v2.x

Code size:
23 KB (23,552 bytes)

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