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isr_lm.exe

Ding Ruan

The application isr_lm.exe by Ding Ruan has been detected as a potentially unwanted program by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Ding Ruan  (signed and verified)

MD5:
afaf17b5a4bfedd6779563f8b23e5103

SHA-1:
f089685dc408c524d74f546d33a21fdecd6e428f

SHA-256:
66d843cf048d73e3540496d62ee2a508e7051f2536e5d747c8f05e037c74c7bb

Scanner detections:
1 / 68

Status:
Potentially unwanted

Analysis date:
7/31/2025 1:47:38 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.ELEX (M)
16.10.14.7

File size:
410.1 KB (419,992 bytes)

File type:
Executable application (Win32 EXE)

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

Digital Signature
Signed by:
Ding Ruan

Authority:
thawte, Inc.

Valid from:
9/28/2016 7:00:00 AM

Valid to:
4/14/2017 6:59:59 AM

Subject:
CN=Ding Ruan, OU=Individual Developer, O=No Organization Affiliation, L=Beijing, S=Beijing, C=CN

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

Serial number:
71E7658468D29367296A74F17571A3AF

File PE Metadata
Compilation timestamp:
10/10/2016 9:31:46 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
6144:bsJPT4N2J6MgCsnwg2NwzkI4n2jSCR7GAPGmIO5dGd2COrOiTAWAF:bAoCeYbwSCR7rPc2CuIF

Entry address:
0x3434

Entry point:
E8, 85, 00, 00, 00, E9, D4, 8B, 00, 00, 6A, 0C, 68, B8, 1C, 46, 00, E8, 06, 92, 00, 00, 83, 65, E4, 00, E8, B1, 76, 00, 00, 8B, F0, 8B, 0D, C8, 38, 46, 00, 85, 4E, 70, 74, 22, 83, 7E, 6C, 00, 74, 1C, E8, 99, 76, 00, 00, 8B, 70, 6C, 85, F6, 75, 08, 6A, 20, E8, E9, 40, 00, 00, 59, 8B, C6, E8, 14, 92, 00, 00, C3, 6A, 0C, E8, 19, 07, 00, 00, 59, 83, 65, FC, 00, FF, 35, 0C, 38, 46, 00, 8D, 46, 6C, 50, E8, BD, 00, 00, 00, 59, 59, 8B, F0, 89, 75, E4, C7, 45, FC, FE, FF, FF, FF, E8, 05, 00, 00, 00, EB, BC, 8B, 75...
 
[+]

Code size:
359 KB (367,616 bytes)

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