Infostealer.Bankeiya

Posted: April 4, 2014

Threat Metric

The Threat Meter is a malware assessment that SpywareRemove.com's research team is able to give every identifiable malware threat. Our Threat Meter includes several criteria based off of specific malware threats to value their severity, reach and volume. The Threat Meter is able to give you a numerical breakdown of each threat's initial Threat Level, Detection Count, Volume Count, Trend Path and Percentage Impact. The overall ranking of each threat in the Threat Meter is a basic breakdown of how all threats are ranked within our own extensive malware database. The scoring for each specific malware threat can be easily compared to other emerging threats to draw a contrast in its particular severity. The Threat Meter is a useful tool in the endeavor of seeking a solution to remove a threat or pursue additional analytical research for all types of computer users.

The following fields listed on the Threat Meter containing a specific value, are explained in detail below:

Threat Level: The threat level scale goes from 1 to 10 where 10 is the highest level of severity and 1 is the lowest level of severity. Each specific level is relative to the threat's consistent assessed behaviors collected from SpyHunter's risk assessment model.

Detection Count: The collective number of confirmed and suspected cases of a particular malware threat. The detection count is calculated from infected PCs retrieved from diagnostic and scan log reports generated by SpyHunter.

Volume Count: Similar to the detection count, the Volume Count is specifically based on the number of confirmed and suspected threats infecting systems on a daily basis. High volume counts usually represent a popular threat but may or may not have infected a large number of systems. High detection count threats could lay dormant and have a low volume count. Criteria for Volume Count is relative to a daily detection count.

Trend Path: The Trend Path, utilizing an up arrow, down arrow or equal symbol, represents the level of recent movement of a particular threat. Up arrows represent an increase, down arrows represent a decline and the equal symbol represent no change to a threat's recent movement.

% Impact (Last 7 Days): This demonstrates a 7-day period change in the frequency of a malware threat infecting PCs. The percentage impact correlates directly to the current Trend Path to determine a rise or decline in the percentage.

Threat Level:	9/10
Infected PCs:	7

First Seen:	April 4, 2014
Last Seen:	December 6, 2021
OS(es) Affected:	Windows

Infostealer.Bankeiya is a banking Trojan that steals your bank account information by generating fraudulent pop-ups that claim to be from your bank, and then transferring any entered data to third parties. While the PC security company Symantec has taken action to restrict all known domain communications for current versions of Infostealer.Bankeiya, Infostealer.Bankeiya appears sure to see future updates and renewed attacks in the future. PC users throughout Asia should be especially careful to disable Infostealer.Bankeiya's most well-identified infection vectors and use anti-malware utilities for deleting Infostealer.Bankeiya, as needed.

Infostealer.Bankeiya: One Reason Why Some Pop-Ups are Worse Than Others

Pop-up windows often are associated with advertisements or, in the worst cases, attempt to install unwanted software, but they also are abused for other types of threat attacks, such as in the case of Infostealer.Bankeiya spyware. Infostealer.Bankeiya was last seen being installed through (currently patched) Internet Explorer and Java vulnerabilities that allowed to engage in attacks from hacked, but otherwise legitimate websites. These sites universally have been oriented at Asian viewers, and especially the Japanese, although China remains a notable secondary target.

Besides performing some generic duties related to transferring information and updating itself, Infostealer.Bankeiya monitors Internet Explorer for any traffic associated with known banking sites. Once Infostealer.Bankeiya sees a victim visiting a bank website, Infostealer.Bankeiya inserts a redirect to a fake login page. Any data that's entered will be given to Infostealer.Bankeiya, which may transfer it to a third party. Thankfully, action by third-parties has been taken to block Infostealer.Bankeiya's communications, which renders many current versions of Infostealer.Bankeiya semi-harmless.

On the other hand, Infostealer.Bankeiya's campaign has been receiving updates in both code and distribution methods since 2013, which malware analysts and others have found to be ongoing into 2014. New versions of Infostealer.Bankeiya Trojans are reasonably sure to receive updates that allow them to track information again as per their usual functionality. At this time, an estimated twenty thousand machines have been compromised by Infostealer.Bankeiya, which targets Windows computers of multiple versions.

Putting a Clamp on the Rising Wave of Cyber-Thievery in Japan

Infostealer.Bankeiya is not the only banking Trojan to strike at Japan and has been seen alongside previously-examined threats like Trojan Zeus, as well as semi-new ones like Infostealer.Ayufos. The presence of similar threats in the same region makes it all the more impressive that, by itself, Infostealer.Bankeiya has compromised hundreds of thousands of computers and made use of sophisticated distribution techniques that could infect new machines automatically. Malware experts must emphasize that Web owners likely to be targeted by these attacks practice all good Web security standards, while Web surfers should concern themselves with blocking scripts, using browsers other than Internet Explorer and having live anti-malware protection.

Pop-ups aside, Infostealer.Bankeiya has few symptoms of its attacks, and should be treated as being active until proper anti-malware tools can verify that Infostealer.Bankeiya is disabled. Deleting Infostealer.Bankeiya should use anti-malware products with good histories versus spyware since the cost of an inadequate deletion can mean unexpected bills that haunt you for a long time to come.

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:

%UserProfile%\Application Data\ini.ini

File name: %UserProfile%\Application Data\ini.ini
Mime Type: unknown/ini
Group: Malware file

Registry Modifications

The following newly produced Registry Values are:

HKEY..\..\{Value}HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run\"IcpIpCfg" = "Rundll32 "%UserProfile%\Application Data\[RANDOM FILE NAME].dll" MainThread"

Additional Information

The following URL's were detected:

Bttxs.com/getp.asp?MAC=&VER=[OS VERSION] Direct.jp-bank.japanpost.jp/tp1web/U010101SCK.do?link_id=ycDctLgnProfile.hatena.ne.jp/ml[RANDOM NUMBER] Web4.ib.mizuhobank.co.jp/servlet/mib?xtr=EmfLogOff&NLS=JP