Trojan.Win32.Agent.icgh (Kaspersky), Gen:Trojan.Heur.9y1@vqu9UYmi (B) (Emsisoft), Gen:Trojan.Heur.9y1@vqu9UYmi (AdAware), Trojan.Win32.Swrort.4.FD, TrojanSwrort.YR (Lavasoft MAS)Behaviour: Trojan
The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.
Summary
MD5: 4b07b5f5e91dc358eb018a745ea78568
SHA1: 796a0efd12b76b8274ec82d864d8a39f0fc04a08
SHA256: a5eb1050e6a1778eea1b157e6707990e50f99290bacb9a3e6d09e5fc0291f948
SSDeep: 24576:/1/aGLDCM4D8ayGMZo8/ /iiZHTLkAUZRRanIvjLtBZ2TzJR:wD8ayGMZoVXTLkAUZRRanIvjLtBEZR
Size: 1010905 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: Software Assistant
Created at: no data
Analyzed on: WindowsXP SP3 32-bit
Summary: Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).
Dynamic Analysis
Payload
No specific payload has been found.
Process activity
The Trojan creates the following process(es):
uyiaus.exe:1880
%original file name%.exe:2016
The Trojan injects its code into the following process(es):No processes have been created.
Mutexes
The following mutexes were created/opened:No objects were found.
File activity
The process uyiaus.exe:1880 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
C:\AUTOEXEC.BAT .exe (1963130 bytes)
C:\MSDOS.SYS .exe (1963130 bytes)
C:\IO.SYS .exe (1963130 bytes)
C:\%original file name%.exe .exe (1963130 bytes)
C:\boot.ini .exe (1963130 bytes)
%Documents and Settings% .exe (1963130 bytes)
C:\RECYCLER .exe (1963130 bytes)
C:\ntldr .exe (1963130 bytes)
C:\original .exe (1963130 bytes)
C:\totalcmd .exe (1963130 bytes)
C:\NTDETECT.COM .exe (1963130 bytes)
C:\System Volume Information .exe (1963130 bytes)
C:\CONFIG.SYS .exe (1963130 bytes)
C:\marker .exe (1963130 bytes)
%Program Files% .exe (1963130 bytes)
%WinDir% .exe (1963130 bytes)
C:\pagefile.sys .exe (1963130 bytes)
The Trojan deletes the following file(s):
C:\Mirax (0 bytes)
C:\Miray (0 bytes)
C:\Mirat (0 bytes)
C:\Miraq (0 bytes)
C:\Mirar (0 bytes)
C:\Miras (0 bytes)
C:\Miral (0 bytes)
C:\Miran (0 bytes)
C:\Mirao (0 bytes)
C:\Mirai (0 bytes)
C:\Mirak (0 bytes)
C:\Mirad (0 bytes)
C:\Miraf (0 bytes)
C:\Mirag (0 bytes)
C:\Miraa (0 bytes)
C:\Mirac (0 bytes)
The process %original file name%.exe:2016 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\All Users\Application Data\uyiaus.exe (1018898 bytes)
%Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (960207 bytes)
Registry activity
The process uyiaus.exe:1880 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"
To automatically run itself each time Windows is booted, the Trojan adds the following link to its file to the system registry autorun key:
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Microsoft® Windows® Operating System" = "%Documents and Settings%\All Users\Application Data\uyiaus.exe"
The process %original file name%.exe:2016 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "83 B5 3C F3 04 8D 42 39 0D 2B B9 EB 72 CD 53 DE"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"
[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"
Dropped PE files
MD5 | File path |
---|---|
8b23a812e451a653092693591198d7b7 | c:\%original file name%.exe .exe |
f700ab5402e90c648fbd22417d41595f | c:\AUTOEXEC.BAT .exe |
0b128770f5bfdd4552eab93412bb0e15 | c:\CONFIG.SYS .exe |
96bed38bdec127792d8a4c15131dfbe5 | c:\Documents and Settings .exe |
2549139ceeb2c40c2ea0aeb04527d833 | c:\Documents and Settings\All Users\Application Data\Saaaalamm\Mira.h |
0fb5ccf6ff1d8528122ad7830f7c1e38 | c:\Documents and Settings\All Users\Application Data\uyiaus.exe |
217a413efef9f5104f9784150f233ff9 | c:\IO.SYS .exe |
472474c5ba8ae0ea2e6c99992aa675b6 | c:\MSDOS.SYS .exe |
a2075f182df30c18e40c9e592ab3638f | c:\NTDETECT.COM .exe |
16585ceee4318835878ceb58e4e3846d | c:\Perl .exe |
72bc2d54183a10f0f7a9fce50bdccc1b | c:\Program Files .exe |
9c97e5d07eaaf5738710a22cf12bfad3 | c:\RECYCLER .exe |
0edaee1ace92cd3fb27034c6a4780b46 | c:\System Volume Information .exe |
5dfe2fc285de606c141e4860c5699b10 | c:\WINDOWS .exe |
108901b70f31befd4d16d7c11272f217 | c:\boot.ini .exe |
393925b51416d841635f43e5ea44dec8 | c:\marker .exe |
ef6fa7758905c5fd098c63c077038d42 | c:\ntldr .exe |
e36784f3665ff04d589e4a99ed6d922e | c:\original .exe |
f8d5e9b6483c1cb56a901e53365c9430 | c:\pagefile.sys .exe |
4095fa285be37650e8414cc1b31f6cea | c:\totalcmd .exe |
HOSTS file anomalies
No changes have been detected.
Rootkit activity
No anomalies have been detected.
Propagation
Removals
Remove it with Ad-Aware
- Click (here) to download and install Ad-Aware Free Antivirus.
- Update the definition files.
- Run a full scan of your computer.
Manual removal*
- Terminate malicious process(es) (How to End a Process With the Task Manager):
uyiaus.exe:1880
%original file name%.exe:2016 - Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
C:\AUTOEXEC.BAT .exe (1963130 bytes)
C:\MSDOS.SYS .exe (1963130 bytes)
C:\IO.SYS .exe (1963130 bytes)
C:\%original file name%.exe .exe (1963130 bytes)
C:\boot.ini .exe (1963130 bytes)
%Documents and Settings% .exe (1963130 bytes)
C:\RECYCLER .exe (1963130 bytes)
C:\ntldr .exe (1963130 bytes)
C:\original .exe (1963130 bytes)
C:\totalcmd .exe (1963130 bytes)
C:\NTDETECT.COM .exe (1963130 bytes)
C:\System Volume Information .exe (1963130 bytes)
C:\CONFIG.SYS .exe (1963130 bytes)
C:\marker .exe (1963130 bytes)
%Program Files% .exe (1963130 bytes)
%WinDir% .exe (1963130 bytes)
C:\pagefile.sys .exe (1963130 bytes)
%Documents and Settings%\All Users\Application Data\uyiaus.exe (1018898 bytes)
%Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (960207 bytes) - Delete the following value(s) in the autorun key (How to Work with System Registry):
[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Microsoft® Windows® Operating System" = "%Documents and Settings%\All Users\Application Data\uyiaus.exe"
Static Analysis
VersionInfo
Company Name: Microsoft Corporation
Product Name: Mira Malware
Product Version: 1.0.0.155
Legal Copyright: Microsoft Corporation
Legal Trademarks:
Original Filename:
Internal Name:
File Version: 1.0.0.155
File Description: Mira Malware
Comments:
Language: Chinese (Simplified, PRC)
Company Name: Microsoft CorporationProduct Name: Mira MalwareProduct Version: 1.0.0.155Legal Copyright: Microsoft CorporationLegal Trademarks: Original Filename: Internal Name: File Version: 1.0.0.155File Description: Mira MalwareComments: Language: Chinese (Simplified, PRC)
PE Sections
Name | Virtual Address | Virtual Size | Raw Size | Entropy | Section MD5 |
---|---|---|---|---|---|
.text | 4096 | 245368 | 245760 | 4.21465 | 8b164ac8ef3742f37830dc1842275667 |
.data | 249856 | 608 | 1024 | 0.488703 | 6fda88cf7188a8245a53dfde927250fd |
.rdata | 253952 | 9384 | 9728 | 3.47165 | dbe852009dbd077a9976cb0ecfb9aadf |
.bss | 266240 | 18576 | 0 | 0 | d41d8cd98f00b204e9800998ecf8427e |
.idata | 286720 | 2212 | 2560 | 2.97703 | 5e5242c565219f3bd33a6568632559dc |
.rsrc | 290816 | 758300 | 750809 | 4.88018 | 652617dce3ae00481eea15ff41ed114b |
Dropped from:
9d453cdaf2c78129a691d5e110325c51
Downloaded by:
Similar by SSDeep:
Similar by Lavasoft Polymorphic Checker:
Network Activity
URLs
IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)
Traffic
Map
The Trojan connects to the servers at the folowing location(s):
Strings from Dumps
uyiaus.exe_1880:
.text
.text
`.data
`.data
.rdata
.rdata
@.bss
@.bss
.idata
.idata
%Documents and Settings%\All Users\Application Data\uyiaus.exe
%Documents and Settings%\All Users\Application Data\uyiaus.exe
Software\Microsoft\Windows\CurrentVersion\Run
Software\Microsoft\Windows\CurrentVersion\Run
Windows
Windows
Operating System
Operating System
%H:%M:%S
%H:%M:%S
%m/%d/%y
%m/%d/%y
-0123456789
-0123456789
%s:%u: failed assertion `%s'
%s:%u: failed assertion `%s'
RegCloseKey
RegCloseKey
RegOpenKeyA
RegOpenKeyA
ADVAPI32.DLL
ADVAPI32.DLL
KERNEL32.dll
KERNEL32.dll
msvcrt.dll
msvcrt.dll
SHELL32.DLL
SHELL32.DLL