Win32/Aibatook

Posted: July 18, 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:	9

First Seen:	July 18, 2014
Last Seen:	March 6, 2020
OS(es) Affected:	Windows

Aibatook is a group of banking Trojans that have undergone significant structural updates in the past months, but always for the purpose of collecting bank account information and enabling fraudulent money transfers. Malware analysts see Aibatook throughout the world, but its latest variants recently were verified for using distribution methods targeting Web browsers loading Japanese adult Websites. These attacks may trigger without any detectable symptoms, and malware experts advise the full use of good anti-malware products for deleting Aibatook, after which you should contact your bank for further recommendations.

The War Between Threats and Security Moves to Erotica Websites

Aibatook has been documented in a wide range of versions since before 2013, with other security companies even having some success in disabling this Trojan's primary Command & Control servers. Unfortunately, these acts of self-defense haven't thwarted Aibatook's developers, who have modified Aibatook to use C++ instead of Delphi, along with a range of other structural, predominantly internal changes. In terms of its primary payload, however, Aibatook remains the same banking Trojan-based threat that Aibatook always has been in previous years.

Aibatook injects additional content into banking login pages to request any generic information, which Aibatook gathers (such as your account name and password). Although Aibatook is capable of collecting information from a variety of sites, many of its routines attack Japan-specific financial institutions, including SBI Sumishin Net Bank and Japan Post. Aibatook is not designed to target non-Japanese domains, and its current Website list is hard-coded (which makes it impractical to modify on the fly).

Aibatook's distribution method also bears in line with the targeting of that geopolitical region; Aibatook's newest version currently is installed through exploits hosted on hacked Japanese websites for erotica. These sites currently receive large amounts of traffic and are among the most popular domains for Japanese visitors. Unusually, malware researchers can find no evidence of Aibatook's developers using exploit kits (PC threats that bundle the potential for using multiple exploits, as appropriate). Instead of using an exploit kit, Aibatook is installed through individual software exploits.

Stopping Aibatook from Taking Its Sweet Time with Your Yen

Aibatook's developers seem to be exercising relatively strict discipline over the attacks and propagation of Aibatook, possibly to limit the PC security industry's ability to analyze this often-upgraded Trojan. It currently is estimated that Aibatook only is installed onto a certain number of machines, due to evidence of a 'counter' component that Aibatook downloads. Aibatook also only affects Internet Explorer, which is an extremely unusual choice for any banking Trojan, and all the more so, since its developers have shown the skills necessary to attack other brands of browsers.

Regardless, you shouldn't trust the frugality of other persons to keep your bank account safe. Aibatook installations may take place without symptoms, and Aibatook designs its injected content to look like additional security procedures from the relevant banks. In all cases, anti-malware products are preferred for blocking, disabling or deleting Aibatook, and malware experts might also suggest that you disable the browser features that allow various software vulnerabilities to be exploited so easily in the first place.

Win32/Aibatook

Threat Metric

The War Between Threats and Security Moves to Erotica Websites

Stopping Aibatook from Taking Its Sweet Time with Your Yen

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