Trojan.Win32.MicroFake.ba (Kaspersky), Trojan.Win32.Ramnit.d (v) (VIPRE), Trojan.Win32.MicroFake!IK (Emsisoft), DDoSNitol.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: 81409065a6f61c9e8f7fe535297f81ea
SHA1: 3c9dcc1c4baf57d40479d868acbf9e1ad0eb037a
SHA256: 6fa3ab4bc442de6cb376a77b48599d093607b8e0dc31b4fdf6a1da347e89b3c7
SSDeep: 1536:GmVtxwjjK7Tp27GjV3P1Y4l3oyzrmgz6kWZW3EQ90bL:GCqjmNl4yzr9z6kwQiL
Size: 93696 bytes
File type: DLL
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6
Company: Fusion Install
Created at: 2010-06-08 12:59:36
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):
regsvr32.exe:1352
hrl1.tmp:2040
The Trojan injects its code into the following process(es):
swwywu.exe:968
File activity
The process regsvr32.exe:1352 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%Documents and Settings%\%current user%\Local Settings\Temp\hrl1.tmp (86 bytes)
The process swwywu.exe:968 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
C:\RCX2.tmp (17660 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\lpk.dll (601 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\Reader9\lpk.dll (601 bytes)
%Documents and Settings%\All Users\Application Data\Adobe\Reader\9.3\ARM\lpk.dll (601 bytes)
%System%\hra33.dll (7 bytes)
The Trojan deletes the following file(s):
%System%\hra33.dll (0 bytes)
The process hrl1.tmp:2040 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):
%System%\swwywu.exe (601 bytes)
Registry activity
The process regsvr32.exe:1352 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:
[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "26 9B EC A3 1B 24 C0 89 03 C1 D3 9E D0 06 EE 70"
Network activity (URLs)
No activity has been detected.
HOSTS file anomalies
The Trojan modifies "%System%\drivers\etc\hosts" file which is used to translate DNS entries to IP addresses. The modified file is 734 bytes in size. The following strings are added to the hosts file listed below:
| 127.0.0.1 | ZieF.pl |
Rootkit activity
The Trojan installs the following user-mode hooks in ntdll.dll:
NtQueryInformationProcess
ZwOpenFile
NtCreateProcessEx
NtCreateProcess
NtCreateFile
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*
- Scan a system with an anti-rootkit tool.
- Terminate malicious process(es) (How to End a Process With the Task Manager):
regsvr32.exe:1352
hrl1.tmp:2040 - Delete the original Trojan file.
- Delete or disinfect the following files created/modified by the Trojan:
%Documents and Settings%\%current user%\Local Settings\Temp\hrl1.tmp (86 bytes)
C:\RCX2.tmp (17660 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\lpk.dll (601 bytes)
%Documents and Settings%\%current user%\Local Settings\Application Data\Adobe\Reader 9.3\Setup Files\Reader9\lpk.dll (601 bytes)
%Documents and Settings%\All Users\Application Data\Adobe\Reader\9.3\ARM\lpk.dll (601 bytes)
%System%\hra33.dll (7 bytes)
%System%\swwywu.exe (601 bytes) - Restore the original content of the HOSTS file (%System%\drivers\etc\hosts): 127.0.0.1 localhost
- Reboot the computer.