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josrv.exe

The executable josrv.exe has been detected as malware by 11 anti-virus scanners. The file has been seen being downloaded from d1mdi78qyff344.cloudfront.net.
MD5:
dd4f650646e887dbb399fbf98c5a91c5

SHA-1:
13ce34a7945f3f750b9e09ae829c1d680d5ad57b

SHA-256:
6bad1fdadb5e2a795803c5be387a14872840222f6032b74cbf590dda5845dd92

Scanner detections:
11 / 68

Status:
Malware

Analysis date:
4/27/2024 3:11:26 AM UTC  (today)

Scan engine
Detection
Engine version

avast!
Win32:Vitro
160209-2

AVG
Win32/Virut
2015.0.4522

Dr.Web
Win32.Virut.56
9.0.1.05190

Emsisoft Anti-Malware
Win32.Virtob.Gen.12
10.0.0.5366

ESET NOD32
Win32/Virut.NBP virus
7.0.302.0

F-Secure
Win32.Virtob.Gen.12
5.15.21

Kaspersky
Virus.Win32.Virut
15.0.0.562

McAfee
Virus.W32/Virut.n.gen
18.0.204.0

Microsoft Security Essentials
Threat.Undefined
1.213.6222.0

Norman
Win32.Virtob.Gen.12
13.02.2016 01:47:07

Sophos
Virus 'W32/Scribble-B'
5.23

File size:
327.5 KB (335,360 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\microsoft\windows\temporary internet files\content.ie5\{random}\josrv.exe

File PE Metadata
Compilation timestamp:
2/9/2003 7:45:00 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
6144:QVxE0DZnDFAGvhJGayvzyXpi23rTZsELPe0jT1wQ:Q80DVDFJvhPE8A23rTaELPN1wQ

Entry address:
0x560D0

Entry point:
83, 3C, 24, FE, 77, FE, 8D, 64, 24, CC, 60, 83, EC, DC, B3, 07, E8, DF, FF, FF, FF, 4B, 66, 4B, 75, FC, 4F, FC, 4F, 90, FF, 73, 3C, 59, FE, C6, 81, E9, FD, FF, FF, 7F, 86, C0, 73, E7, 87, FF, 87, F2, 81, D9, E6, 13, 00, 00, 71, DB, 00, CE, 24, FF, 38, EC, FF, B4, 19, E4, 13, 00, 80, 83, C4, 04, 90, 86, C4, 90, 66, 81, 44, 24, FC, B0, BA, B4, 9C, 75, BC, 48, 86, F5, 42, 68, 7D, 54, EC, E7, E8, 67, 00, 00, 00, 89, 74, 24, 44, E8, D2, FE, FF, FF, 89, 44, 24, 34, 83, E8, 04, 0F, 82, 1E, FF, FF, FF, 64, A1, 18...
 
[+]

Entropy:
6.5910

Code size:
257 KB (263,168 bytes)

The file josrv.exe has been seen being distributed by the following URL.

http://d1mdi78qyff344.cloudfront.net/JOSrv.exe

Remove josrv.exe - Powered by Reason Core Security
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