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isass.exe

The executable isass.exe has been detected as malware by 35 anti-virus scanners. It is set to automatically execute when any user logs into Windows (through the local user run registry setting) with the name ‘Local Security Authority Process’.
MD5:
41250576ac54cc106b1a4c1a1b5fc98a

SHA-1:
c3de92cef070941762a503eae75203b0b11a2068

SHA-256:
bef34501cdd25c87328fd18b505cfe02cfbac289abfa8083cea7bb5af868e4f3

Scanner detections:
35 / 68

Status:
Malware

Analysis date:
4/23/2024 1:25:41 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
GenPack:Generic.Malware.MW.9A936204
435

Agnitum Outpost
I-Worm.Updater
7.1.1

AhnLab V3 Security
Trojan/Win32.Kykymber
2015.11.26

Arcabit
GenPack:Generic.Malware.MW.9A936204
1.0.0.624

avast!
Win32:Trojan-gen
2014.9-151126

AVG
Worm/Generic3
2016.0.2913

Baidu Antivirus
Worm.Win32.Pepex
4.0.3.151126

Bitdefender
GenPack:Generic.Malware.MW.9A936204
1.0.20.1650

Clam AntiVirus
Win.Worm.Updater-2
0.98/21511

Comodo Security
UnclassifiedMalware
23656

Emsisoft Anti-Malware
GenPack:Generic.Malware.MW.9A936204
8.15.11.26.07

ESET NOD32
Win32/Pepex
9.12624

F-Prot
W32/NewMalware-Rootkit-I-based!
v6.4.7.1.166

F-Secure
GenPack:Generic.Malware.MW.9A936204
11.2015-26-11_5

G Data
GenPack:Generic.Malware.MW.9A936204
15.11.25

IKARUS anti.virus
Email-Worm.Win32.Atak
t3scan.1.9.5.0

K7 AntiVirus
Trojan
13.212.17972

Kaspersky
Email-Worm.Win32.Updater
14.0.0.1061

Malwarebytes
Backdoor.Agent
v2015.11.26.07

McAfee
Artemis!41250576AC54
5600.6569

Microsoft Security Essentials
Worm:Win32/Dipasik.A
1.1.12300.0

MicroWorld eScan
GenPack:Generic.Malware.MW.9A936204
16.0.0.990

NANO AntiVirus
Trojan.Win32.Updater.cstfyd
0.30.26.4751

nProtect
Worm/W32.Updater.42496
15.11.25.01

Panda Antivirus
Trj/Genetic.gen
15.11.26.07

Qihoo 360 Security
HEUR/Malware.QVM18.Gen
1.0.0.1077

Quick Heal
Worm.Networm.r3
11.15.14.00

Rising Antivirus
PE:Worm.Mail.Win32.Updater.a!1616601 [F]
23.00.65.151124

Sophos
Mal/PWS-JJ
4.98

Total Defense
Win32/Tnega.AQRF
37.1.62.1

Trend Micro House Call
WORM_UPDATER.AC
7.2.330

Trend Micro
WORM_UPDATER.AC
10.465.26

Vba32 AntiVirus
Worm.Updater
3.12.26.4

VIPRE Antivirus
Trojan.Win32.Generic
45424

Zillya! Antivirus
Worm.Updater.Win32.30
2.0.0.2527

File size:
41.5 KB (42,496 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\windows\isass.exe

File PE Metadata
Compilation timestamp:
12/4/2009 5:35:59 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

CTPH (ssdeep):
384:D73vq0yEXDBAFVPd3IEqC2RgzBjXYdlKI7vvxlLrs:P3vq0yEWFVPd3pqC0l17Drs

Entry address:
0x8130

Entry point:
60, E8, 00, 00, 00, 00, 58, 05, 5A, 0B, 00, 00, 8B, 30, 03, F0, 2B, C0, 8B, FE, 66, AD, C1, E0, 0C, 8B, C8, 50, AD, 2B, C8, 03, F1, 8B, C8, 57, 51, 49, 8A, 44, 39, 06, 88, 04, 31, 75, F6, 2B, C0, AC, 8B, C8, 80, E1, F0, 24, 0F, C1, E1, 0C, 8A, E8, AC, 0B, C8, 51, 02, CD, BD, 00, FD, FF, FF, D3, E5, 59, 58, 8B, DC, 8D, A4, 6C, 90, F1, FF, FF, 51, 2B, C9, 51, 51, 8B, CC, 51, 66, 8B, 17, C1, E2, 0C, 52, 57, 83, C1, 04, 51, 50, 83, C1, 04, 56, 51, E8, 5E, 00, 00, 00, 8B, E3, 5E, 5A, 2B, C0, 89, 04, 32, B4, 10...
 
[+]

Entropy:
3.2920

Packer / compiler:
ASPack v1.08.04

Code size:
16 KB (16,384 bytes)

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

Name:
Local Security Authority Process

Command:
C:\windows\isass.exe %1


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