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issch.exe

InstallShield Update Service

InstallShield Software Corporation

This is a self-extracting archive and installer. It is set to automatically execute when any user logs into Windows (through the local user run registry setting) with the name ‘ISUSScheduler’.
Publisher:
InstallShield Software Corporation

Product:
InstallShield Update Service

Description:
InstallShield Update Service Scheduler

Version:
4, 10, 100, 25539

MD5:
6f78ed5f9b99515142e1b57b341e3d77

SHA-1:
0a8e0789df645614a24a04d106a0881cd9f26ad6

SHA-256:
1d632ba9c8861df596d318e4b0b70d646bf6a05774a54dacab8c9dcea6191281

Scanner detections:
2 / 68

Status:
Inconclusive  (not enough data for an accurate detection)

Analysis date:
4/1/2025 7:59:29 PM UTC  (today)

Scan engine
Detection
Engine version

Clam AntiVirus
Win.Trojan.Ramnit-1847
0.98/23209

F-Secure
Win32.Ramnit
5.16.24

File size:
188 KB (192,512 bytes)

Product version:
4, 10

Copyright:
Copyright (C) 1990-2004 InstallShield Software Corporation

Original file name:
issch.exe

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\Program Files\common files\installshield\updateservice\issch.exe

File PE Metadata
OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

Entry address:
0x1A000

Entry point:
60, E8, 00, 00, 00, 00, 5D, 8B, C5, 81, ED, A6, 9B, 01, 20, 2B, 85, C4, 9E, 01, 20, 89, 85, C0, 9E, 01, 20, B0, 00, 86, 85, 1B, A1, 01, 20, 3C, 01, 0F, 85, DE, 02, 00, 00, 8B, 85, C0, 9E, 01, 20, 2B, 85, CC, 9E, 01, 20, 8B, 00, 89, 85, 67, A0, 01, 20, 8B, 85, C0, 9E, 01, 20, 2B, 85, D0, 9E, 01, 20, 8B, 00, 89, 85, 6F, A0, 01, 20, 83, BD, 6F, A0, 01, 20, 00, 0F, 84, A9, 02, 00, 00, 83, BD, 67, A0, 01, 20, 00, 0F, 84, 9C, 02, 00, 00, 8D, 85, 0A, A1, 01, 20, 50, FF, 95, 67, A0, 01, 20, 83, F8, 00, 0F, 84, 86...
 
[+]

Entropy:
7.2324

Packer / compiler:
ASPack v1.08.04

Code size:
52 KB (53,248 bytes)

Startup File (All Users Run)
Registry location:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run

Name:
ISUSScheduler

Command:
"C:\Program Files\common files\installshield\updateservice\issch.exe" -start


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