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csrss.exe

ag_A_d_G_Z_

aR_j_W_H_

The executable csrss.exe has been detected as malware by 2 anti-virus scanners. It runs as a scheduled task under the Windows Task Scheduler named Skype triggered by a time event. The file has been seen being downloaded from www.exeupp.com.
Publisher:
aR_j_W_H_

Product:
ag_A_d_G_Z_

Description:
a5_i_i_Z_

Version:
6.7.9.37

MD5:
30246152f7628f704002f39c60d51c6e

SHA-1:
aea43fb6ca86f3cbfdc5bf8f162b580eb4b5ef77

SHA-256:
822cb953bce42fcde7eb69a088bcdc1783c34f1cbaecb18214c2e8040dce2bde

Scanner detections:
2 / 68

Status:
Malware

Analysis date:
11/27/2024 8:37:01 PM UTC  (today)

Scan engine
Detection
Engine version

avast!
MSIL:GenMalicious-E [Trj]
160518-2

ESET NOD32
MSIL/Injector.CMQ trojan
8.0.319.0

File size:
45 KB (46,080 bytes)

Product version:
6.7.9.37

Copyright:
Copyright © 2005

Trademarks:
az_j_g_M_v_r_

Original file name:
111.exe

File type:
Executable application (Win32 EXE)

Language:
Language Neutral

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

File PE Metadata
Compilation timestamp:
5/29/2016 9:36:22 AM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
6.0

.NET CLR dependent:
Yes

CTPH (ssdeep):
768:3YteO+JBrjrfxtodGYLAFBHsMzk6woYeicniOt38MVP0x046o:TJBVaLcHsL7oecntsy0xP

Entry address:
0xCB9E

Entry point:
FF, 25, 00, 20, 40, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, C0, 00, 00, 0C, 00, 00, 00, A0, 3B, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
7.0010

Developed / compiled with:
Microsoft Visual C# / Basic .NET

Code size:
43 KB (44,032 bytes)

Scheduled Task
Task name:
Skype

Trigger:
Time


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

https://www.exeupp.com/.../csrss.exe

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