TSPY_NEGASTEAL.A
Trojan:Win32/Skeeyah.A!rfn (Microsoft), Infostealer.Limitail (Symantec), hacktool.msil.boilod.a (Invincea)
Windows
Threat Type: Spyware
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
Downloaded from the Internet, Dropped by other malware
This spyware may be downloaded by other malware/grayware from remote sites.
TECHNICAL DETAILS
155,648 bytes
EXE
Yes
24 Nov 2016
Connects to URLs/IPs, Steals information
Arrival Details
This spyware may be downloaded by the following malware/grayware from remote sites:
- W2KM_DONOFF.YBC
Installation
This spyware drops the following copies of itself into the affected system:
- %Application Data%\Java\JavaUpdtr.exe
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
It creates the following folders:
- %Application Data%\Java
(Note: %Application Data% is the Application Data folder, where it usually is C:\Documents and Settings\{user name}\Application Data on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Roaming on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.)
Autostart Technique
This spyware adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows NT\CurrentVersion\Windows
Load = %Application Data%\Java\JavaUpdtr.exe
Backdoor Routine
This spyware connects to the following URL(s) to send and receive commands from a remote malicious user:
- www.{BLOCKED}esla.com
Type of data sent:- type={0}&hwid={1}&time={2}&pcname={3}&logdata={4}&screen={5}&ipadd={6}&webcam_link={7}&client={8}&link={9}&username={10}&password={11}&screen_link={12}&site_username={13}
where:
0 is a command which can be:
webcam - send images caught by webcam to C&C
screenshots - send screenshots to C&C
keylog - send keystroke logs to C&C
update - update the keylogger software
info - send machine information to C&C
uninstall - uninstall binary
passwords - send stolen password to C&C
Information Theft
This spyware gathers the following data:
- Screenshots
- Webcam capture
- Keystrokes including clipboards
- Steals password from:
- Chrome
- Opera
- Yandex
- Firefox
- Internet Explorer
- Safari
- SeaMonkey
- Comodo
- Coolnovo
- Chromium
- Flock
- Outlook
- Thunderbird
- TheBat!
- PocoMail
- Eudora
- FoxMail
- Opera Mail
- FileZilla
- WinSCP
- FlashFXP
- CoreFTP
- FTPCommander
- SmartFTP
- WS_FTP
- Paltalk
- Internet Download Manager
- JDownloader
- Pidgin
- NO-IP
- DynDNS
Other Details
This spyware connects to the following URL(s) to get the affected system's IP address:
- http://checkip.{BLOCKED}s.org/
It does the following:
- Terminate a process
- Disable task manager, regedit, command prompt, run, control panel, system restore, folder options, MS config
- Display fake error message
- Uninstall self from victim’s machine
NOTES:
- type={0}&hwid={1}&time={2}&pcname={3}&logdata={4}&screen={5}&ipadd={6}&webcam_link={7}&client={8}&link={9}&username={10}&password={11}&screen_link={12}&site_username={13}
SOLUTION
9.800
Step 1
Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.
Step 2
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Restart in Safe Mode
Step 4
Delete this registry value
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\Windows
- Load = %Application Data%\Java\JavaUpdtr.exe
- Load = %Application Data%\Java\JavaUpdtr.exe
Step 5
Search and delete these folders
- %Application Data%\Java
Step 6
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_NEGASTEAL.A. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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