MD5: caba5ea90dd1dbc6296c1b79abd4d60e
SHA1: eb51dd0cd702931a413ada6ceb81f1d9668cfc47
SHA256: e915525853cd67b596f97c64e41a069d6337285ece7636e16dd428ad1845c63c
SSDeep: 12288:71/aGLDCMNpNAkoSzZWD8ayX2MQCw7D0E0ZU VG/eTHPYQWw:71/aGLDCM4D8ayGMQKU New
Size: 525641 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2014-02-27 08:41:59
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).

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

%original file name%.exe:388
siyqf.exe:484

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 %original file name%.exe:388 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (510598 bytes)
%Documents and Settings%\All Users\Application Data\siyqf.exe (515770 bytes)

The process siyqf.exe:484 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

C:\AUTOEXEC.BAT .exe (1027488 bytes)
C:\MSDOS.SYS .exe (1027488 bytes)
C:\IO.SYS .exe (1027488 bytes)
C:\%original file name%.exe .exe (1027488 bytes)
C:\boot.ini .exe (1027488 bytes)
%Documents and Settings% .exe (1027488 bytes)
C:\RECYCLER .exe (1027488 bytes)
C:\ntldr .exe (1027488 bytes)
C:\original .exe (1027488 bytes)
C:\totalcmd .exe (1027488 bytes)
C:\NTDETECT.COM .exe (1027488 bytes)
C:\System Volume Information .exe (1027488 bytes)
C:\CONFIG.SYS .exe (1027488 bytes)
C:\marker .exe (1027488 bytes)
%Program Files% .exe (1027488 bytes)
%WinDir% .exe (1027488 bytes)
C:\pagefile.sys .exe (1027488 bytes)

The Trojan deletes the following file(s):

C:\Mirax (0 bytes)
C:\Miray (0 bytes)
C:\Mirat (0 bytes)
C:\Mirau (0 bytes)
C:\Mirav (0 bytes)
C:\Miraw (0 bytes)
C:\Mirap (0 bytes)
C:\Miraq (0 bytes)
C:\Mirar (0 bytes)
C:\Miral (0 bytes)
C:\Miran (0 bytes)
C:\Mirao (0 bytes)
C:\Mirah (0 bytes)
C:\Mirae (0 bytes)
C:\Miraa (0 bytes)
C:\Mirab (0 bytes)

Registry activity

The process %original file name%.exe:388 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "82 54 C6 91 18 58 11 A3 69 F2 7E FA DF C8 6C C9"

[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"

The process siyqf.exe:484 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\siyqf.exe"

Dropped PE files

HOSTS file anomalies

No changes have been detected.

Rootkit activity

No anomalies have been detected.

Propagation

VersionInfo

No information is available.

PE Sections

Dropped from:

Downloaded by:

Similar by SSDeep:

Similar by Lavasoft Polymorphic Checker:

URLs

No activity has been detected.

IDS verdicts (Suricata alerts: Emerging Threats ET ruleset)

Traffic

Web Traffic was not found.

The Trojan connects to the servers at the folowing location(s):

.text

`.data

.rdata

@.bss

.idata

%Documents and Settings%\All Users\Application Data\siyqf.exe

Software\Microsoft\Windows\CurrentVersion\Run

Windows

Operating System

%H:%M:%S

%m/%d/%y

-0123456789

%s:%u: failed assertion `%s'

RegCloseKey

RegOpenKeyA

ADVAPI32.DLL

KERNEL32.dll

msvcrt.dll

SHELL32.DLL

Remove it with Ad-Aware

1. Click (here) to download and install Ad-Aware Free Antivirus.
2. Update the definition files.
3. Run a full scan of your computer.

Manual removal*

1. Terminate malicious process(es) (How to End a Process With the Task Manager):
   

   %original file name%.exe:388
   siyqf.exe:484

2. Delete the original Trojan file.
   
3. Delete or disinfect the following files created/modified by the Trojan:
   

   %Documents and Settings%\All Users\Application Data\Saaaalamm\Mira.h (510598 bytes)
   %Documents and Settings%\All Users\Application Data\siyqf.exe (515770 bytes)
   C:\AUTOEXEC.BAT .exe (1027488 bytes)
   C:\MSDOS.SYS .exe (1027488 bytes)
   C:\IO.SYS .exe (1027488 bytes)
   C:\%original file name%.exe .exe (1027488 bytes)
   C:\boot.ini .exe (1027488 bytes)
   %Documents and Settings% .exe (1027488 bytes)
   C:\RECYCLER .exe (1027488 bytes)
   C:\ntldr .exe (1027488 bytes)
   C:\original .exe (1027488 bytes)
   C:\totalcmd .exe (1027488 bytes)
   C:\NTDETECT.COM .exe (1027488 bytes)
   C:\System Volume Information .exe (1027488 bytes)
   C:\CONFIG.SYS .exe (1027488 bytes)
   C:\marker .exe (1027488 bytes)
   %Program Files% .exe (1027488 bytes)
   %WinDir% .exe (1027488 bytes)
   C:\pagefile.sys .exe (1027488 bytes)

4. 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\siyqf.exe"

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.