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_isuser.dll

Everstrike OOO

The module _isuser.dll by Everstrike OOO 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:
Everstrike OOO  (signed and verified)

MD5:
88badf43c95c73ac18a55ffee59d13e8

SHA-1:
39981b3d2455304ad3c9dc62d583f6b57576c4aa

SHA-256:
e78d78927d9edfe926013bdba66ba8c6ab6cc7baccda2b105bb0477cf4c93b6d

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:
4/25/2024 3:33:23 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP (M)
16.8.8.12

File size:
49.8 KB (51,016 bytes)

File type:
Dynamic link library (Win32 DLL)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\usbspy-2.2\presetup\_isuser.dll

Digital Signature
Signed by:
Everstrike OOO

Authority:
VeriSign, Inc.

Valid from:
12/17/2010 1:00:00 AM

Valid to:
1/14/2012 12:59:59 AM

Subject:
CN=Everstrike OOO, OU=Digital ID Class 3 - Microsoft Software Validation v2, O=Everstrike OOO, L=Ulyanovsk, S=n/a, C=RU

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
1C6FEBAF7115A5C4FFAEAACEC3EA4FF1

File PE Metadata
Compilation timestamp:
11/11/2011 12:48:28 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
768:L9LqiC4aAb/7YMmjzXnulPah5ePkUmnTEDAld3vyLa5PPEK3LFmOve:9q1AbDmbpkPcX4Lk8K3oz

Entry address:
0x27CB

Entry point:
8B, FF, 55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, DE, 15, 00, 00, FF, 75, 08, 8B, 4D, 10, 8B, 55, 0C, E8, EC, FE, FF, FF, 59, 5D, C2, 0C, 00, 8B, FF, 55, 8B, EC, 81, EC, 28, 03, 00, 00, A3, 40, AC, 00, 10, 89, 0D, 3C, AC, 00, 10, 89, 15, 38, AC, 00, 10, 89, 1D, 34, AC, 00, 10, 89, 35, 30, AC, 00, 10, 89, 3D, 2C, AC, 00, 10, 66, 8C, 15, 58, AC, 00, 10, 66, 8C, 0D, 4C, AC, 00, 10, 66, 8C, 1D, 28, AC, 00, 10, 66, 8C, 05, 24, AC, 00, 10, 66, 8C, 25, 20, AC, 00, 10, 66, 8C, 2D, 1C, AC, 00, 10, 9C, 8F, 05, 50, AC...
 
[+]

Entropy:
6.3777

Code size:
23 KB (23,552 bytes)

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