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Istart.exe

3431_ill_istartsurf

Fuyuan Zhou

The application Istart.exe by Fuyuan Zhou has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It is also typically executed from the user's temporary directory.
Publisher:
HTabp.com  (signed by Fuyuan Zhou)

Product:
3431_ill_istartsurf

Description:
HTabp

Version:
6.6.86.1604

MD5:
95523019ff85fcb55336eeac143e482c

SHA-1:
6cc118cec8c22e196da576c1197d8f5b0ea5e658

SHA-256:
f3686089a0fa33b862a51d88b055a9926c3a6129a31f73ffbb9b677d06fa983b

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:
12/25/2024 2:18:05 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.11.4.7

File size:
655.1 KB (670,816 bytes)

Product version:
6.6.86.1604

Copyright:
Copyright (C) HTabp.com 2010

Original file name:
HTabp.exe

File type:
Executable application (Win32 EXE)

Language:
English

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\istart\istart.exe

Digital Signature
Signed by:
Fuyuan Zhou

Authority:
DigiCert Inc

Valid from:
1/15/2015 1:00:00 AM

Valid to:
1/20/2016 1:00:00 PM

Subject:
CN=Fuyuan Zhou, O=Fuyuan Zhou, L=Jilin, S=Jilin, C=CN

Issuer:
CN=DigiCert SHA2 Assured ID Code Signing CA, OU=www.digicert.com, O=DigiCert Inc, C=US

Serial number:
08CA606335C89594E0B8D9706948A708

File PE Metadata
Compilation timestamp:
3/30/2015 4:38:57 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
12288:qyqsQe3RHz3zeS6uUwXhrNpyJVwVxV1b3VjTTea:zrBT3zUuvxNwJV01bFTTZ

Entry address:
0x29D10

Entry point:
E8, 3F, CA, 00, 00, E9, 89, FE, FF, FF, 8B, FF, 55, 8B, EC, 83, EC, 20, 8B, 45, 08, 56, 57, 6A, 08, 59, BE, D0, 66, 47, 00, 8D, 7D, E0, F3, A5, 89, 45, F8, 8B, 45, 0C, 5F, 89, 45, FC, 5E, 85, C0, 74, 0C, F6, 00, 08, 74, 07, C7, 45, F4, 00, 40, 99, 01, 8D, 45, F4, 50, FF, 75, F0, FF, 75, E4, FF, 75, E0, FF, 15, A4, 61, 47, 00, C9, C2, 08, 00, CC, CC, CC, CC, CC, CC, CC, CC, CC, CC, 8B, 4C, 24, 04, F7, C1, 03, 00, 00, 00, 74, 24, 8A, 01, 83, C1, 01, 84, C0, 74, 4E, F7, C1, 03, 00, 00, 00, 75, EF, 05, 00, 00...
 
[+]

Entropy:
6.4260

Code size:
468 KB (479,232 bytes)

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